Beyond the basics is a plethora of flyfishing advice for everything from trout to tarpon. One of the best is Lefty Kreh's brand-new book,** Presenting the Fly** (352 pp.; 1999. Illustrated. Published by The Lyons Press. Hardcover, $40). Lefty is a master tactician, caster, and teacher-famous for practical tips and insights. This-the best among his several books-is vital for all flyfishermen regardless of skill level.