Abe Kruger has spent the past 21 years at the forefront of sustainable construction as a contractor, educator, and consultant. He is the co-founder of SK Collaborative, a firm advancing green building, healthy housing, and building enclosure consulting nationwide. SK Collaborative has contributed to or is consulting on more than 100,000 apartments and homes across 24 states, U.S. territories, and abroad. Abe is also the co-author of Green Building: Principles and Practices in Residential Construction (Delmar/Cengage Learning), the first textbook dedicated to residential green building. He serves as the Co-Chair of the Women’s Affordable Housing (WAHN) Ally Committee.