Art Ludwig is an ecological systems designer with 27 years full-time experience in water, wastewater systems, energy, shelter and human powered transport. His specialty is complex, integrated "systems of systems." Art has studied and worked in 22 different countries, consulted for the states of New York and New Mexico on water reuse policy, and given dozens of lectures and workshops.

He designed his own education in Ecological Systems Design, graduating from UC Berkeley. At Berkeley, he developed the first cleaners specifically designed to be biocompatible with plants and soil, and founded a successful business to manufacture and distribute them. Art has authored numerous articles (including one on water testing procedures) as well as the books "Water Storage" "Principles of Ecological Design," and "Create an Oasis with Greywater."