I love, love, love my tuning forks. These tuning forks have been on my radar for quite some time and much research directed me back to this site. I trusted my intuition and ordered the practitioners set. I emediately started using the tuning forks though I should have read the book first. The video was enough tutorial to get me going down the right path. I have since began reading the book and am even more impressed with the depth of information it contains. The books explanation of the sound theory is wonderful so far but covers very little on the actual use of all the tuning forks delivered in the set. I have a few weighted tuning forks in me set whose purpose and application are not covered in the video or the book. I have noticed a huge difference in my very being just from practicing some of the protocols listed in the book. I can't wait to expose people to these beautiful tools. Sending positive vibrations your way.