Watermark Books & Cafe will host basketball player Mario Chalmers and Almarie Chalmers on Tuesday, July 31 at 5:30 p.m. for a signing of ABCs of Basketball. The event is ticketed. With the purchase of one book, attendees will get two tickets to the signing. Mario Chalmers' ABC's of Basketball is a fun and lively story about Lil' Rio and his friends. Intended to inform and spark the interests of younger children, the book is also a great resource for older readers, and even parents, wanting to learn more about the game.