http://miraclesinaction.org/
Miracles in Action has brochures about chaya available in English and Spanish. A collection of recipes for chaya, in Spanish, is also available for download:
Miracles in Action seeks out under-served pockets of need in rural Guatemala and we research projects that focus on education, vocational training, and sustainable development. We select projects that achieve long-term results, improve quality of life, and allow truly impoverished people to help themselves. We believe in working in partnership with poor Guatemalan people, giving them a hand up, instead of a hand-out. We also strongly believe that education is the surest way out of poverty, and so devote much of our efforts in that direction.