Despite a career in software engineering, the list of books I’ve read is shorter than my grocery list. Several years ago I found a book that just grabbed me and I read the 800 pages in about a week.
It can be hard to find the right book. I suggest finding a book that relates to a topic that really grabs your attention, but that you don’t know a lot about. This will fuel the desire to keep reading the book. If you find yourself having trouble concentrating, think about what isn’t grabbing your attention and look for books that go in the opposite direction. In the end it is similar to watching a documentary. Some I could sleep through, others I watch on repeat.