What are milestones?

Reading Milestones can be set up in any Book Club. These help club readers stay on track together and are set by the Book Club creator. If you're a reader in a club, you won't' be able to change the reading milestones, but you don't need to follow them exactly if you read faster or a bit slower than others. Just make sure if you read ahead that you don't post spoilers in the club chat!