Barnes & Noble has a really cool promotion throughout July: "Get Pop-Cultured with Barnes & Noble!" Here's a bit about the program:

The Get Pop-Cultured with Barnes & Noble month will feature special offers and savings;  stations throughout the stores featuring various themes, products or activities; local talent; B&N Member exclusives; and more. 

This year’s themes include Time Travel, Throwback Thursdays (celebrating decades 1950s-90s), Comic Convention Collectibles & Graphic Novels Extravaganza, Movie Tie-ins, Manga, Fan Girl, CosPlay, Vinyl Records, Music Trivia & Pop Art, and more!

I'm going to assume Dusty falls under the bolded category. Stop by to hear him talk about Attack of the Alien Horde  and to get your copy signed.