I want to scan a book which has more than 1000 pages, but I don't want to turn every single page in the book. Is there any easier way to scan the entire book without having to turn all the pages by hand?
If you don't mind destroying the book: cut off the binding. Now you have a stack of loose pages you can run through a document feeder.
I haven't tried it with such a big book, but nowadays there are great scan apps from the smartphone, which can give very good quality and also fix the display to make it look scanned. They can adjust the direction, colors etc.
Some of those apps has options for batch scanning, and so you can hold your smartphone above the book and turn each page. It would be much faster than doing the same on a scanning machine.
If you choose to use an app like that, you can use a simple smartphone tripod (or how the smartphone version is called), and it would make your life much easier.
It doesn't help with the turn every page problem, but it does help make the procedure faster in case you don't find any other way.