When I'm having trouble paying attention to a book, particularly a non-fiction that I have to drudge through, I'll slow down and start reading the book in the voice of a famous comedian. Suddenly everything is 10x more interesting. Try Robin Williams. Graph Theory taught by Robin Williams is really charming. He laughs jovially at every theorem.
John Cleese teaching Unix/Linux Administration (funny walks).
Alexi Sayle teaching database reduction to normal form (those Mersey vowels).
One of the centres I teach in runs a book club to encourage literacy and reading. Seems popular. Mix of participants. It is a traditional book club where they all read the same text.