<P> Nelson runs Nelson Treehouse and Supply, a thriving treehouse building and supply company, and Treehouse Point, a treehouse Bed & Breakfast located outside of Seattle . His latest endeavor is hosting Animal Planet's hit television series, Treehouse Masters . </P> <P> He lives with his wife, Judy, in Fall City, Washington and has three adult children, all of whom work in the family Treehouse building business . </P> <P> In 1987 Nelson's dream of a career in treehouses was rekindled by the book How to Build Treehouses, Huts and Forts by David Stiles that was sent to him by a high school friend and shortly thereafter, he built his first adult treehouse in his back yard in Colorado Springs, moving to Washington State that same year, where he built homes and started writing books about treehouses . </P> <P> Nelson owns and operates Nelson Treehouse & Supply in Fall City, WA, 30 miles outside of Seattle and the company is a family affair, with wife Judy, daughter Emily and sons Charlie and Henry, all involved . </P>

What kind of dog does the treehouse master have