There are articles on the history and uses of thyme and cultivation in the garden written by Susie White. The Big Book of Thyme is available in 6 parts for ease of download. Part 6 includes a full bibliography and details of nursery catalogues consulted, an illustrated glossary, lists of nurseries selling thyme and the index. Also included are the author's photographs of thyme growing in the wild.
Margaret Easter holds National Plant Collection of Thymus (Scientific Status) and has been growing and studying thyme for nearly 20 years and is the International Cultivar Registration Authority (ICRA) for Thymus.