Dr. Gareth Southwell is a philosopher, writer and illustrator living in Wales, UK. He has taught, examined and written about philosophy for many years, and is the author of a range of books aimed at the general reader: A Beginner's Guide to Descartes's Meditations and A Beginner's Guide to Nietzsche's Beyond Good and Evil (Wiley-Blackwell), Words of Wisdom (Quercus), 50 Philosophy of Science Ideas You Really Need to Know (Quercus), and (with Julian Baggini) Philosophy: Key Themes and Philosophy: Key Texts (Palgrave Macmillan).
Rae Spencer-Jones studied horticulture before joining the editorial team of Gardens Illustrated magazine. Now a freelance horticultural journalist and author, she has written on all areas of horticulture for a wide range of gardening publications, including the gardening pages of the Daily Telegraph and The Times, Gardener's World magazine, and Gardens Illustrated. Her own book, Wild Flowers of Britain and Northern Europe, was published by Kyle Cathie in 2005. Contributors include: Caroline Holmes, Erica Hunnungher, Christine Reid, Barbara Reid, Barbara Segall and Naomi Slade.