The manual is 8 1/2" X 11" and has laminated covers, 164 pages with over 400 highest quality, full color pictures printed on "70lb text" pure white paper and has a metal coil binding. The reason for such high quality color pictures is due to the use of colored indicating arrows for identification of parts and Hammond's color coded wires. This is a very simple and comprehensive manual and takes you through every step with text and pictures. You don't have to be a technician or have had any previous experience working with Hammond organs to follow this manual. You may need to contact a technician at some point, depending on the condition of your organ but you will literally save thousands of dollars by doing this yourself. If you do need a technician to work on certain aspects that you cannot handle, at least the organ will be in an open state and there will be less time involved for the tech. Most musicians cannot afford to pay someone to completely overhaul their organ. The largest percentage of our customers have reached a level of success and can now fulfill there life long dream of owning a B3 in top condition. They don't buy them to take on the road. Working musicians, on the other hand, should know something about maintaining their own instrument even if they don't intend on doing a total re-build. Writing this manual was a labor of love and was a sincere effort to share the knowledge.
I hope it serves you well