This week’s calendar is packed with food events, starting with today’s anticipated release of Vagabound Ale by Allagash as well as the restaurant worker art show tonight at One Longfellow and closing out on Sunday with a book signing/Goastravaganza at Rabelais Books for Margaret Hathaway and her new work Living with Goats. The weekly Piatto per Tutti cooking class and the Foodie Trivia Contest are taking place this evening. On Wednesday, there will be a macrobiotic/raw vegan potluck at GRO Cafe, Black Tie is teaching a class on the basics of making sushi, and The Salt Exchange is running their weekly wine and canapes event. The 2009 Harvest on the Harbor is taking place Thursday through Sunday. The Great Lost Bear is showcasing beer from Andrews Brewing Co and Sheepscot Valley Brewing on Thursday. Eve’s at the Garden is hosting the 5th Annual Caviar Dinner Friday evening. Also on Friday, a NERAX cask ale event is taking place at Novare Res, and O’Naturals in Falmouth is screening the movie Food Inc. Rabelais Books is holding back-to-back book signings on Saturday with Peter Berley and Lucinda Scala Quinn. Portland’s weekly Farmers’ Markets are being held in Monument Square on Wednesday and at Deering Oaks Park on Saturday. For more information on these and other upcoming food happenings in the area, visit the event calendar.