At only about 130 pages, I find this book to be quite informative and easy to read. It is basically about the usage of the 49th Vibrational Technique (color which can be combined with sound--musical notes--for healing purposes) and acknowledges the work of East Indian physician Dr. Dinshah P. Ghadiali. The technique of recirculating blocked energy goes back to at least 500 B.C. and was used by Pythagoras and others. The 49th Octave is a vibrational range that corresponds to certain colors, which fall within an electromagnetic energy spectrum. Basically, these colors can be projected to certain areas of the body to affect, and maybe heal, certain medical conditions.
I say "maybe heal" for a reason. You absolutely CANNOT heal someone who does not WANT to be healed. Been there. Yes, believe it or not, there ARE people who really do NOT WANT to be healed. It takes a 1) desire to be healed, and 2) it usually means you have to fix/change whatever made you "sick" in the first place. Change is a painful process for most people and often not worth the trouble. So, if they don't fix whatever made them sick, the condition often returns.
Anyway, the book provides a lot of base information about colors, their vibratory rate, how colors and body energy interact, auras, chakras, energy imbalances, healing with sound,and matching color vibrations to various parts of the body. The book even provides how to information, such as what colors to place on what areas of the body to help reduce high blood pressure. An example of what colors to place on what areas is: in the back of the book, there are 123 conditions listed.Let's pick one:
#51 Gout--Lemon and Magenta on WBF; Scarlet on 12. WBF is Whole Body Front. Area 12 is on the back side of the body, and is the kidney area. This how to is explained in more detail in chapter 5, color application. There are also diagrams of front and back area numbers and locations of major organs so you can figure out what this "language" is saying. There really is a tremendous amount of info in this roughly 113 page book (plus about 17 extra pages of end-of-book stuff.)
There are also good explanations of various colors for those who see colors in the auras or wherever. There ARE people who see colors and energy fields, but if you are checking out this book, you probably already know that.