Restoration tip.
Nice library!!!
I was a mechanic for many years, and once in a while I'd get the question in one form or another "what is your favorite/most used/most important tool". I'd always point shelves of books and manuals.
I know a lot of the stuff is available on the computer now and while it's a good source and has it's place you just can't beat having the book. I can usually find the book I need and the information in the book quicker than I can look it up on the computer. (had a lot of practice LOL)