As well as landscapes, Peter undertakes commissioned work for clients, primarily architectural photography. He has written several other books including two for GMC: Light in the Landscape – a Photographer’s Year (2001) and The Field Guide to Landscape Photography (2002); three for Photographers’ Institute Press: Capturing the Light (2005), Reading the Landscape (2009) and Seasons of Landscape (2010); and three for Ammonite Press: Views Across the Landscape (2013); Composition in the Landscape (2014) and Lessons in Landscape (2016).