No Starch Press (@nostarch) tweeted at 0:03 PM on Wed, Oct 31, 2018: Happy Halloween! Treat yourself with 40% off all books (including ebooks) today through Friday, November 2nd with code TRICKORTREAT40 at checkout. https://t.co/DwLB1MOSE4 https://t.co/tQmRSPXlSF (https://twitter.com/nostarch/status/1057679566385295360?s=03) Get the official Twitter app at https://twitter.com/download?s=13