Yes, I do it for my knitting so I can annotate as I knit and reduce the weight of my knitting bag. Take your time lining up your book. I find that my scans are a little off center. I find that I can improve the scan if I hold the scanner cover down during the scan otherwise the scan fades off near the bound edge. If the page content without the margins is more than legal sized page you will need to go to a copy shop.
The lid lifts but only from rear hinge however there is plenty of room to put a book facedown while lid is up! Scanning area is slightly larger than a 8.5 x 11 sheet of paper. So Yes, I would say it would work to scan book pages.
The lid pivots up until it is perpendicular to the rest of the scanner, so you can put anything directly on the scan bed. The lid can also be lifted straight up about an inch, so if the book isn't too thick you can pivot the lid back down flat on the book to cover it and/or hold it down.
Yes, you can scan your books. You are only limited by the size of the glass on the scanner. As indicated in other comments, the lid lifts up to a perpendicular position and can also be raised about an inch at the hinges. As with a photocopy machine, if you just hold the book in place, even without lowering the lid, you will get your scanned copy (the edges will be black of course, but that's easily trimmed off)
Yeh the lid would lift up for scanning book but you still manually flip pages of the book. It'll take a while to scan the entire book. I would suggest look for some handheld scanner with medium quality instead