Having books on hand is all well and good but..................what about people who do not have the mechanical ability, the place, the tools or in some cases, the time to do mechanical work? Do Formula 1 drivers do the work or do they do the driving......drivers do what the do best and the mechanics do what they do best by KNOWING AND UNDERSTANDING the mechanics of an automobile?
I bought the books as recommended by forum members, Complete Service Bulletins, Model A Ford Mechanics Handbook Vol 1, Complete Model "A" Ford Restoration Manual and they have been informative, the very minuet times I've had them open, one I've never used because I'll have to buy the book that explains everything that's inside, I think those books are titled "For Dummies".
If you are mechanically inclined, have the space, have all the tools and have the time, get the books....if you don't, join a Model A forum, a Model A Club and find a mechanic who does, then you do what you do best, enjoy
DRIVING your Model A.