One Thing I Know is an excellent bond built on secrets book. Full of twists and humor, One Thing I Know somehow covers the deception and hurt a lie causes, while also capturing the love between the two main characters, Rachel and Lucas. I loved the talk show concept and the focus on sports and relationship coaching combined. It's unique, but realistic, and totally fun to read!

This book takes readers on an emotional roller coaster. I found myself laughing one minute and tearing up the next. I really liked how real Rachel and Lucas were real and readers were given a glimpse into a complicated relationship where they had to make tough decisions. I would not call this book overtly Christian fiction, but there is definitely a strong faith thread woven throughout the book.

Thank you to the publisher and Netgalley for a copy of this book. All opinions expressed are entirely my own.

‘One Thing I Know’ by Kara Issac was a sweet, somewhat angsty, and overall poignant love story with Christian elements. Recommend!

Such a cute and fun read! Perfect distraction in life right now. Really enjoyable characters and story and hard to put down!

This was a sweet little story, but I felt there wasn't much to it to make it memorable. It was cute and fluffy, so I enjoyed it.

A woman leading a double life and a man who hates duplicity...what could possibly go wrong?

This was sweet romance with depth, as I've come to expect (and eagerly anticipate from Kara Isaac). I would rate this PG for mild kissing, a sweet and clean romance.

I think I'm just not the person for contemporary romance! I always give it a try, and I always want to like it, but it just annoys me. Perhaps that's a fallback of my "hating all Hallmark" attitude - or perhaps it's just that everything seems so real that I struggle to get into a reading phase with it. (I prefer historical because it takes me away to somewhere unique.)

That said, this wasn't a bad story. It's a pretty hilarious situation to get in - if I don't understand how people can make believe these kinds of things and not feel immense guilt. ;)

A trope of being forced to keep a secret is not always my idea of a great book as I am generally screaming at the author, "Just let her tell him."
This one did a good job of not making me as frustrated because the writing is so good. I love her characters. They are real. Rachel wasn't seeking out romance, fame or the limelight. She wanted to write and that is what she did well. 
This more unique story will make you think that you love contemporary stories and will want to read all her other books too.

In One Thing I Know, Rachel Somers is the ghostwriter and assistant for Dr. Donna, best-selling author, relationship coach — and Rachel’s aunt. Rachel stays out of the limelight as much as possible. They fool the public for years, only their publicist knows the truth. Now as Rachel struggles with inspiration for their next book, Dr. Donna and their publicist plan a tour with radio personality Lucas Grant. Rachel hopes that Lucas won’t uncover their secret, and that inspiration will strike.

Meanwhile, Lucas Grant, tries to make a name for himself, but his female fans keep asking him for relationship advice during his sports show. A big-time producer makes him an offer he can’t refuse with a small catch – discover the secret behind Dr. Donna while they are on tour together and he will get his own national show. Will he be able to sweet-talk Rachel to revealing their secret? Will he forgive their deception or expose them as frauds?

One Thing I Know weaves God’s truth through the story as the people are portrayed realistically, imperfect, and in need of grace. The faith element is present but not overbearing. As Rachel and Lucas struggle with issues stemming from their childhood, they deal with it differently – Lucas is judgmental, while Rachel carries guilt.There are some secondary characters that are part of today’s world: gay, abuser of alcohol, as well as solid Christians.

Rachel Somers is America’s #1 relationship coach—America just doesn’t know it. Rachel writes the books, but her Aunt Donna plays the face of the operation. Living in fear of their secret being exposed, Rachel has no choice but to keep up the charade or lose the big money required to care for her father. With the deadline for their next book closing in, Rachel finds herself out of inspiration and running out of time. The last thing she needs is her aunt and publicist concocting a harebrained scheme to join forces with some radio star in the hope it will help deliver the elusive next book idea. Lucas Grant is a star of late night radio—though it’s come with an unexpected price of hordes of women who keep calling his sports show to ask him for relationship advice. They make his ratings look great, but they also mean he has to waste hours talking to people like Dr. Donna Somerville about feelings instead of his first love: football. When a big-time producer calls, it looks like his hard work is about to pay off. But the offer comes with a catch—the producer is convinced Dr. Donna is not what she seems and he wants Lucas to discover her secret. To do that, he needs to win over her tight-lipped assistant who holds the key to his success and—he begins to suspect—his heart. Can love find a way through the lies that force them apart?
The premise of this is loosely similar to one of my favorite movies, Someone Like You. It was a sweet book that I did like reading. I liked both characters. I recommend.
**I voluntarily read and reviewed this book

I generally enjoyed Kara Isaac's writing, and sometimes quite liked the characters, but One Thing I Know was a bit too slow and a lot too Christian for my taste. The "big secret" also never felt like a very big deal, and the pacing is pretty inconsistent.

Overall, this novel just wasn't for me, and I wouldn't have picked it up at all if I'd known it was Christian romance. That said--if you're looking for slightly Christian romance and don't mind a slower pace, this book might be for you!

One Thing I Know was a cute contemporary romance from Kara Isaac. I enjoyed the storyline and how the characters interacted with each other. It was fun...up until her secret was revealed and then things got serious. I could understand his hurt, but also could see why she did what she did...

The ending was very good and wrapped everything up nicely. I recommend this book if you enjoy this genre -- it is a good one.

*Disclosure of Material Connection: I received one or more of the products or services mentioned above for free in the hope that I would mention/review it on my blog. I was not required to give a positive review, only my honest opinion - which I've done. All thoughts and opinions expressed are my own and I only recommend products or services I use personally and believe will be good for my readers. I am disclosing this in accordance with the Federal Trade Commission's 16 CFR, Part 255: "Guides Concerning the Use of Endorsements and Testimonials in Advertising.*

This book is different from all of Kara's other stories. It was edgier, less comedic and more romantic--but that romance is tense and dramatic and heartfelt and hard. It was a slow and steady buildup rather than diving right in. Slower-paced than her normal stories, but so worth the read.

Please don't pass this story by. It's worth it.

Rachel Somers is America’s best loved advice columnist but no one knows. While Rachel writes the books, her aunt is the public face of “Dr. Donna.” Working together has met many needs for both of them and they have put a great deal of effort into maintaining the charade. However, burnout has raised its ugly head and the muse has fled. Rachel and Donna embark on a grueling publicity tour that requires working closely with late night radio host Lucas Grant. For some reason, women love to call Lucas’s sports program and ask for relationship advice. As Rachel and Lucas work together, she fears he might discover her secrets. And Lucas has secrets of his own that might ruin their budding romance.

This was a cute, breezy contemporary romance that focused more on the characters and situations and less on intimate scenes. I liked Rachel and Lucas but found them both at times quite frustrating. And the secrets that they were hiding didn’t seem worth all the angst they generated. Maybe I was frustrated because the characters, like real people, could have made their lives so much easier if they just dealt with their issues.
The novel was enjoyable even if the pace and plotting seemed a bit off towards the end. When we finally got there, the resolution seemed a bit rushed without giving the characters enough time to really process feelings and situations.

Even so, a solid read and I would recommend it. 3.5 stars.

I received an ARC of this book from NetGalley in exchange for an honest review.

Rachel Somers is the bestselling author of series of relationship books … except the whole of America thinks her aunt, Dr. Donna Sommerville, is the author. Now, lots of published books are actually written by ghostwriters, so that’s no big deal.

But Rachel is more than the author. She’s also the voice behind a lot of the interviews. Lucas Grant is the host of a late-night radio talkback show. It’s supposed to be a sports show, but people keep calling him about their relationship problems. He is not amused when the powers-that-be decide he should join forces with relationship guru Dr. Donna. On the plus side, it does bring him into contact with Dr. Donna’s attractive assistant, Rachel. And it brings him to the attention of Brad, a media bigwig in Los Angeles who has the power to propel Lucas’s career into the stratosphere.

Rachel is happy being in the background—it’s why her aunt has always been the “face” of their books. She’s attracted to Lucas, but that doesn’t mean she’s ready to let him into her life. It’s a relationship built on half-truths between two people seeking fame and fortune for opposite reasons, but both sets of reasons relating to father issues.

If you’re looking for a novel with a strong and overt faith thread, then One Thing I Know isn’t the novel for you. Lucas and Rachel aren’t Christians at the beginning, and although I saw Rachel thinking about faith, it’s subtle. And Lucas? He’s not there yet.

But if you’re looking for well-written fiction with a set-up ripe with misunderstanding and understated Christian themes, then One Thing I Know might be just what you’re looking for.

Kara Isaac says this book is the first in a series of three, and we will see Lucas and Rachel in future books. I’m looking forward to it!

Thanks to Howard Books and NetGalley for providing a free ebook for review.

I really liked this not so typical, Kara Isaac romance. The main characters, Rachel and Lucas, have tons of baggage, which gets in the way of trust.
I enjoyed the witty banter, teasing, and the attraction between them. As that attraction turns toward love, there are still lots of secrets they are keeping from each other. What happens when those secrets come out and the truth is told... you have to read that for yourself, no spoilers from me. I can say it had me glued to my tablet though.
This may be weird but I thought the author wrote an excellent scumbag character, in the form of a big-shot, LA radio executive. I couldn't stand him!
There is a great deal of drama throughout the book, making this a very engaging story.
I loved how it ended.

I really enjoyed this one. It was a great read that I enjoyed. I would recommend it to anyone who loves romance.

I didn't love this book. It was just an okay read for me. I felt like it wasn't grabbing me in the first few chapters the way a lot of other romance books do. I like that the premise was a little different but it just felt bland to me. The writing was good and I would try another book by the author.

Rachel Somers in the level-headed relationship #1 relationship expert in the country, but nobody knows it. Her mother died when she was young and she has a difficult relationship with her father who is in ill health, a result of his heavy drinking days. Her Aunt Donna is the face of her brand, but Rachel is the brains.



Lucas Grant is an editorial sports commentator, who has begun dabbling in relationship advice after a random woman caller asked on air, and he gave his classic tell-it-like-it-is answer. Now he is sports radio shows is being flooded with calls from women seeking his relationship expertise. His big break is on the horizon, but it comes with a catch, his producer wants him to find out Dr. Donna's secret.



Rachel must keep up the charade to help her troubled father, will she lose it all?



Rachel is quiet and unassuming, she likes to stick to the shadows in favors of her Aunt taking the spotlight as a better fit for the brand. She had a troubled childhood and her aunt is the only one she has been able to count on. She is conflicted, and searching for answers. I really liked her college friend, who was an admirable example of faith.



Lucas is is surprised when giving relationship advice becomes the most popular part of his show, he desperately wants to take the next big step with his career. He is close with his family, and is intrigued by the willowy assistant to Dr. Donna.



Rachel and Lucas are surrounded by good Christian people, who have faith and it inspires them to take a second look at things, I don't want to spoil the ending but I felt that the direction of the main character's spiritual lives was left unresolved. That bothered me. It was a slow burner for me, and while I liked the premise, I felt like I had higher expectations. This was a fun read, with a romantic comedy setup. But overall, it just wasn't the book for me.


Disclosure of Material Connection: I received one or more of the products or services mentioned above for free in the hope that I would mention it on my blog. Regardless, I only recommend products or services I use personally and believe will be good for my readers. I am disclosing this in accordance with the Federal Trade Commission's 16 CFR, Part 255: "Guides Concerning the Use of Endorsements and testimonials in Advertising."

I just love every single one of Kara Isaac's books!
Her characters are quirky, witty, funny and sweet. There's always a faith theme and redemption at the end of the story. I also love her background descriptions. I really love everything about her books.
I really didn't know what to expect because she said this book was a bit different from the usual christian style, that the main characters were non believers, etc.
I have to say that this book exceeded my expectations and that I didn't need to be wary of this book! This was a beautiful, deep and emotional, realistic story! I think there's so much merit because both the characters lack of faith and they struggle with childhood trauma that shaped their personalities. Which is a very common issue in our world right now. How many disfunctional families affect their children's lives and beliefs? I thought this book was very insightful and made me reflect. It is not the typical romantic comedy Kara usually writes, and some people cathegorize it in women's fiction. I think it is between both cathegories, women's fiction and contemporary romance. I can only say it touched me deeply, and that I cried and rooted for each of the characters, especially Rachel.
Rachel has lived her past years hiding in the shadows of her aunt. She's Americas number 1 relationship coach, but her aunt Donna gets all the credit, she's just the mind behind the books they publish. She has to keep the charade going because she needs the money to pay for her father's medical care. But she finds herself out of inspiration and the deadline for her next book looms over. So Aunt Donna concots a plan to join forces with a famous Radio Host who's lately talking about relationship issues in his sports channel.
Lucas loves his work, except that it's turning into a Doctor Love show instead of the sports he's so passionate about. Just when things seem to turn for the best, his boss presses him to work with Dr. Donna so he can get to the bottom of the mystery behind her image: something is boiling behind, and her assistant Rachel seems to have the key to it.
Since their first meeting, there's an undeniable attracion and connection, but when their past and personal issues resurface, will they be able to hold on to their fragile bond? They share so many connections, they are both broken and in need of grace... Rachel carries great guilt and Lucas holds great grudges...
I liked that they both have people that supports them. Rachel has a good friend, and Lucas has his brother to look up to. But ultimately, can they really be healed when the scars hide deep wounds?
This was a beautiful story about brokenness, healing, loss and ultimately forgiveness.
I definitely recommend it to anyone, christians or non believers. There's so much to learn, to relate, and to hope for.
Congratulations again Kara Isaac!!
I received this book from the Publisher via Netgalley and all opinions here are solely my own.