GREENPOINT Book nerds rejoice: this weekend, WORD’s Annual Holiday Open House returns with a vengeance. The two-day event offers an impressive number of authors spending time at the store – so if you ever dreamed of Emily Gould selling you a book or Julie Powell wrapping your Christmas presents, Saturday is the day to stop by. Authors appearing on Sunday include Emily St. John Mandel, the Brooklyn author of The Singer’s Gun, and Julia Wertz, whose graphic novel Drinking at the Movies depicts her first year living in New York. For updates on the growing list of authors, keep an eye on WORD’s site. There will also be snacks and other surprise holiday activities; for an extra feel-good touch, donations for gift-wrapping will be going to the Greenpoint Food Pantry.