I got both for my 1964. Book & CD. I start with the book while inside the house the nite before or in the morning with a good cup of coffee. I read how to do what I want to accomplish. I find the same section on the CD & print a copy to take to the work site. I slip the pages into cheep page protectors, which I keep in a cheep loose leaf binder. this keeps the sheets together & sorta clean. I have a pristine book plus a shop manual avaiable at hand for what I'm working on. I have also done this when I take my other car, non USA to be worked on & the mechanic dodnt have a shop manual. George