I have to admit, whenever I read an Ivan Doig novel, I get an itch to move to Montana. Now that his latest, “The Bartender’s Tale,” is sitting on my bedside table, I expect I’ll be scrolling through online real estate listings, dreaming of place along the eastern front of the Rockies, or maybe one of those big houses on Flathead Lake. In the meantime, Spokane fans of the Montanan-turned- Seattleite can look forward to a Doig visit. The bestselling author will be at Auntie’s Bookstore at 7 p.m. Sept. 18, reading from “The Bartender’s Tale.”