My favorite story type is the Space Opera. Many of them encompass dozens of books. Some of these books span only a few days, while others span years or even centuries. Add in the books with simultaneous events (i.e. different stories with events happening at the same time), and you’ve got a very messy timeline.

ReadingOrder.info presents the books in a way that shows you how the books relate to each other.

• The books are in chronological order. With thick arrows pointing to the next book, and thin dashed arrows pointing to offshoots (aka side quests).
• The size of the book’s box does not indicate length (neither time nor page count). The boxes change size only as need to show relationship to other stories.
• Keep an eye out for stars that indicate good starting points. And warning signs that offer advice on avoiding spoilers.