Gina Biegel
Gina M. Biegel, LMFT, is a psychotherapist, researcher, speaker, and author in the San Francisco Bay Area who specializes in mindfulness-based work with adolescents.
This book is more appropriate for (6-9 year olds) and not teens per sé.
Thich Nhat Hanh
He is my favorite monk. He was born in central Vietnam in 1926, and started his training at the age of sixteen. He was one of the first bhikshus to study a secular subject at university in Saigon, and one of the first six monks to ride a bicycle!!