As a frequent reader (I like to do an hour before bed), I will say that most fiction novels are hard work the first 1/3 or so, getting to know all the character

As a frequent reader (I like to do an hour before bed), I will say that most fiction novels are hard work the first 1/3 or so, getting to know all the characters, the situation, etc. But once you "know the world" the middle third is usually very enjoyable, and the last third can be thrilling / addictive. Series books help there, you usually already know the characters / world a bit when you start. That said it's often just entertainment / mental junk food, not some great virtuous act like it's frequently portrayed by libraries / kids shows / lit majors.