I fell prey to the curse of info “dumps.” I hate that term, but it explains it quite accurately. The reader doesn’t need to know everything at once. If you give them that, why will they keep reading? You need to give them just enough to intrigue and entice, but leave enough unanswered questions in their mind to keep turning the pages of your book. Drop hints as you go, fill in with bits and pieces of back story here and there, and you can convey a lot through well-placed and informative dialogue.
What is the first thing you do when you begin a new book?