Leigh Kunkel writes: “The legalization of marijuana in many states and municipalities in recent years has created a newly legal industry and budding entrepreneurs who can benefit from the expertise of business librarians. As soon as Washington state introduced an initiative to legalize recreational cannabis use in 2012, Seattle Public Library librarian Jay Lyman started fielding questions from potential entrepreneurs. Since then, 24 states and the District of Columbia have legalized recreational cannabis use, and 14 more have legalized medical use of cannabis. This cultural shift brings a new opportunity for libraries to step in with support services.”