Michael has written, co-authored, or compiled more than 100 books, almost all of them on one or other aspect of environmental science. He is the editor of six science dictionaries and several of his books have won awards. A full list of his books can be found at his website.
Among his publications are: Dictionary Of Science For Gardeners: London And Portland Oregon published by Timber Press 2015; Oxford Dictionary Of Plant Sciences published by OUP 1991, 1998, 2012; Discovering The Earth: Plants, New York (Facts on File 2010); Makers Of Science (with Derek Gjertsen) Five-volume set on the history of science, New York (OUP 2001)
Plants And Plant Life. A 10-volume series of which he wrote five volumes: Plant Ecology; Plants Used By People; Conifers; Flowering Plants: The Monocotyledons: Flowering Plants; The Dictyledons (Danbury CT, Grolier Educational 2001); DK Guide To Weather (Dorling Kindersley 2000) (Winner of the Junior Prize of the Aventis Prizes for Science Books 2001); The Concise Oxford Dictionary Of Ecology (Editor); Oxford Dictionary Of Environment & Conservation (OUP 2nd edition 2012).