Gary is featured in the following PDF articles/links.
- Worlds Leading Arborist
- San Diego Oak Tree Health Appraisals
- Trees of Mystery - Redwoods of Northern California
- Quality Tree Care information - Trees are good.
- The Wild Trees by Richard Preston.
- Meetings With Remarkable Trees and Remarkable Trees of The World, both by Thomas Parkenham.
- The Orchid, by Takashi Kijima, the award winning nature photographer from Japan.
- The Beckoning Path: Lessons of A Lifelong Garden by Ted Nierenberg.
- The 5000 Year Leap, by W. Cleon Skausen.
- A Briefer History of Time by Stephen A. Hawking.
- Blink by Malcolm Gladwel.
- Rumi: The Way of Passion by Andrew Harvey.
- Trees: One year in 40 seconds.
- The Garden of Earth From Above.
- Shift Happens.
- Feathers from the Garden Trees.
- www.ted.com. free educational website featuring hundreds of short lectures by some of today's most cutting edge thinkers in the fields of Technology, Entertainment and Design.
- www.space.com. get ready to have your mind stretched, perspectives altered and paradigms shifted.