I hear a lot of people asking questions about chapter length. There are pros and cons of different chapter lengths, but as a general rule, you really don’t want your chapters to be too long. Especially if some your readers have commitment issues.
Why do we split things into chapters anyway?
For lots of reasons. Organization is one. It’s the same as how we separate paragraphs. If a book was one gigantic paragraph, it would be much more difficult to read. If a book was one gigantic chapter, it would be a completely different beast.
Power is another. Chapter breaks can be almost cinematic. We put cliffhangers right at the end of chapters. Beginnings and ends are both extremely important in literature, and the more chapters you have, the more beginnings and ends you have.
Yet another reason we have chapters is for flow. Chapter breaks are like mini vacations for your mind. You have a minute to remove yourself from the story, as a reader. You can process and digest. Chapter breaks are where most people choose to stop reading for the night and pick up later.
Which brings me to the thing about commitment issues: