On Saturday, June 10, from 3 to 5 p.m., Allan Zola Kronzek will be demonstrating close-up magic and signing copies of his book of tricks, “Grandpa Magic” at Romany Kramoris Gallery in Sag Harbor. The book, filled with 116 tricks, stunts and brainteasers, is guaranteed to make grandparenting even more fun, and crack up the grandkids. From the old pull-a-quarter-from-behind-a-kid’s-ear trick and “removing your thumb” to card tricks, stunts for the dinner table and verbal puzzles that surprise and delight, there’s something for everyone. Step-by-step illustrations make them easy to learn.