There are those among us who have an obsession with walking. Not necessarily to get from Point A to Point B, but simply for the meditative, awe-inspiring and fitness-inducing benefits that can be derived along the way. Fortunately for us, New Mexico is second to none when it comes to the pursuit of trekking. Stephen Ausherman is the author of 60 Hikes Within 60 Miles: Albuquerque. His book, which details great trails around the Duke City, is being updated and released in its second edition. Ausherman will speak at Bookworks (4022 Rio Grande NW) tonight at 7 p.m.