At the moment I will only give a rating to the book and I hope it is possible for me to write down my reviews on Amazon and Goodreads. I am very grateful to you because your publications are great, especially in the topics that interest me most. Thanks and blessings.

Extremely useful and interesting book. It makes so much sense considering everything is made up of vibrations. I loved the layout and the level of information was pitched perfectly. The brilliant thing about this is that it is so easy to do. Even if you don't follow all the exercises perfectly you could just hum. Its cheap, easy and absolutely everyone can do it. I hummed while I read it just to make sure I was tuned into the book !! Excellent

I have recently become interested in sound healing and THE HUMMING EFFECT really helped supplement my knowledge. It is clearly written, explaining how the use of harmonic tones can be curative. It was filled with easy to follow exercises that are fun to do and left me filled with a sense of well being and energized.