Let’s get one thing straight here. Don’t be intimidated by how long it will take you to read these books. In comparison to that week or few months it took you to read it, that’s probably a fraction of how long it took the author to write it. And the more you read, the more your reading speed should improve.
In any case, here is a rough guide for how long it will take to read some classic and popular books. Speed readers, start your engines.