Everyone's favorite nutbucket continues her big-city adventures! Practicing shrink, property manager, animal lover, hopeless romantic-complete and utter crackpot. She might be a lunatic, but she's never boring. This year has been especially off-the-wall cuckoo-bananas exciting-and Harley has precious little time left over for her mission of do-gooding. Time to expand her operation with her very own team of assistants! But only the best can be trusted to spread Harley's values of honor and trustworthiness and insubordination. The hiring process will be competitive-and bloody! And that's not all! In this volume, Harley also breaks into Arkham Asylum to save her bestie Poison Ivy, falls hard for dashing millionaire Bruce Wayne, and spreads her own unique brand of holiday cheer. Featuring celebrated writers Amanda Conner and Jimmy Palmiotti and artists Chad Hardin and John Timms, with guest artists Ben Caldwell, Mauricet, Darwyn Cooke, Brandt Peters and more. Collects issues #14-16 of the ongoing series as well as ANNUAL #1, HOLIDAY SPECIAL #1, and VALENTINE'S DAY SPECIAL #1.