MARK KAUFMAN has been fascinated with boats and boatbuilding since his childhood days of growing up boating with his family on Pennsylvania’s Allegheny River. As a teenager, he built his first boats, a wood-and-canvas Trailcraft canoe and a Minimost hydroplane. Later, he acquired a passion for flying and home-built aircraft, and built a two-seat, high-performance composite aircraft. After college, Mark became interested in aircraft restoration and restored an award-winning “tube and fabric” 1948 Piper vagabond aircraft. He holds instrument, commercial, and flight instructor ratings. During the last several years he has become an avid bicyclist and kayaker, and builds his own custom fillet-brazed bicycle frames and skin-on-frame kayaks. Mark is currently the chair of the technology education department at Garden Spot High School in New Holland, Pennsylvania, and a technology educator teaching beginner and advanced woodworking. Several of his high school students have built skin-on-frame canoes, stitch-and-glue kayaks, wood-strip canoes, and skin-on-frame Aleutian- and Greenland-style kayaks in addition to their regular course work. He also teaches a number of adult education classes on skin-on-frame kayak construction.