Books Out of the Blue is having our very first Summer Series Smash! The challenge goes from June 1st to August 31st, and while the main goal is to finish as many series as you can, I've also included a handful of optional prompts from our event bingo board that you can feel free to challenge yourself with! Some of the optional prompts can be used for standalone titles in case you can't commit to ONLY series-based books this summer! 💜