Les has an abiding interest in the graphic arts and loves to draw. He is the author of eight books related to architecture; every book includes numerous explanatory drawings integral to the subject matter. The two most popular of these, Tiny Houses, and American Shelter, have sold over 100,000 copies. He employs his drawings as a primary method of communicating design ideas, both in his books and his architectural practice. He has also developed unique paper model building skills which he uses to engage his clients in a more personal design process. He is a graduate of Yale University where he received a Masters Degree in Architecture and of the Pennsylvania State University where he received a Bachelors Degree in Architecture.

He has been published in magazines and newspapers worldwide and has lectured at several American colleges and universities. He was an adjunct Professor of Architecture at the City College of New York for 20 years and has served on the Board of Directors of the Woodstock (NY) Byrdcliffe Guild for over 25 years where his primary interest is the preservation of the historic Byrdcliffe Arts Colony buildings