Peter Walker is an American landscape architect and the founder of PWP Landscape Architecture. Early life and education Walker grew up in California, where he attended the University of California, Berkeley. Walker started out studying journalism but quickly changed his field and received a Bachelor of Science in Landscape Architecture in 1955. He did graduate studies at the University of Illinois, where he studied under Stanley White. Walker attended the Harvard Graduate School of Design, where he received his master's degree in Landscape Architecture in 1957 and won the school's Jacob Weidenmann Prize that year. Career At Harvard University, Walker had been deeply influenced by his professor, Hideo Sasaki. After graduating, he worked for Sasaki. Shortly thereafter, they both went into partnership to form Sasaki Walker Associates in 1957. Walker and Sasaki went their separate ways in 1983, and Walker entered a partnership with landscape architect Martha Schwartz. In the early 1990s, Walker formed Peter Walker and Partners. In a 1993 review, Walker was one of four landscape architects named as representative of the new generation. The company developed into an interdisciplinary firm that employs around thirty to forty landscape architects. The company has received many awards and co-designed the World Trade Center Memorial in New York with architect Michael Arad. Walker designed the garden for the Nasher Sculpture Center. In 2013 he was involved in a public argument with the architect of a neighboring building, Museum Tower, because the glare from the glass was damaging the vegetation. Walker described it as "public desecration". Peter Walker is also a co-author of Invisible Gardens, which touches on the modernist movement in the United States and the comparison of other landscapes to those in Europe. The book discusses influential landscape architects, including Sasaki. Awards 2004 - The ASLA Medal, the highest medal of the American Society of Landscape Architects. 2004 - ASLA Honor Award: Design, Nasher Sculpture Center 2005 - The Geoffrey Jellicoe Gold Medal from the International Federation of Landscape Architects. 2008 - The ASLA Landmark Award for Tanner Fountain at Harvard University, Cambridge, Massachusetts 2010 - Knight Management Center: Stanford GSB awarded Green Project of the Year by the Silicon Valley/San Jose Business Journal 2012 - The J.C. Nichols Prize Winner for Visionaries in Urban Development from the Urban Land Institute 2012 - Peter Walker & PWP Landscape Architecture awarded the Liberty Award by the Lower Manhattan Cultural Council. 2012