Angel Ayón, AIA, LEED AP, NCARB is the founder and Principal of AYON Studio Architecture • Preservation, P.C. (AYON Studio) in New York City, where he provides comprehensive professional services in the fields of Architecture and Historic Preservation. Mr. Ayón has more than twenty-four years of learning from, advocating for, and ultimately conceiving and overseeing conservation efforts to save and secure our built heritage as a cultural asset for current and future generations. His experience with Modern architecture includes the rehabilitation and exterior enhancement of Frank Lloyd Wright's Solomon R. Guggenheim Museum for which he was the project architect between 2004 and 2008 (prior to founding AYON Studio). Among other organizations, he is a member of Docomomo_US and its local chapter Docomomo New York/Tri-State, the Historic Preservation Committee of The Municipal Art Society of New York, the Board of Advisors of the Historic Districts Council, the Board of Trustees of the Preservation League of New York State and Save Harlem Now! He was awarded the 2015 James Marston Fitch Mid-Career Fellowship to undertake the research presented in this book. Mr. Ayón holds a professional degree as an Architect (1995) and a M.Sc. in Conservation and Rehabilitation of the Built Heritage (1998) from the Higher Polytechnic Institute "José Antonio Echeverría" in his native Havana, Cuba, and a Post-Graduate Certificate in Conservation of Historic Buildings and Archaeological Sites (2002) from Columbia University in New York.