The biggest tip is to read fun books. Pick up an easy dumb page turner like The Da Vinci Code, and reading won’t be a chore. Save the non-fiction and literary fiction for when you get more in the habit. Also, it’s ok to give up on a book if it’s not interesting.
I'm going to second this: if a book doesn't grip you and get you to be curious, then this indicated it is badly written (applies to both fiction and nonfiction). Give yourself permission to skim books or stop reading halfway - life is too short to read something that's not enjoyable or useful.
