Cook, Hadrian and Williamson, Tom, eds. (2007) Water Meadows:History, Ecology and Conservation. Windgather Press, Macclesfield. ISBN 10 1-905119-12-7
Barnes, Gerry, Dallas, Patsy, Whyte, Nicola, Thompson, Heidi and Williamson, Tom (2007) Heathland and wood pasture in Norfolk: Ecology and landscape history. British Wildlife, 18 (6). pp. 395-403. ISSN 0958-0956
Harwood, Edward, Williamson, Tom, Leslie, Michael and Dixon Hunt, John (2007) Whither Garden History? Studies in the History of Gardens & Designed Landscapes, 27 (2). pp. 91-112. ISSN 1460-1176
Liddiard, Robert (2007) Medieval Designed Landscapes: Problems and Possibilities. In: Landscape History after Hoskins, vol 2: Medieval. Windgather Press, pp. 201-214. ISBN 9781905119189
Liddiard, Robert (2007) The Medieval Park: New Perspectives. Windgather Press. ISBN 9781905119165
Williamson, Tom (2007) Heaths, woods and hedges: Some historical perspectives on Norfolk's "natural" landscapes. Transactions of the Norfolk and Norwich Naturalists Society, 40 (1). pp. 1-15.
Williamson, Tom (2007) Historic Landscape Characterisation: some queries. Landscapes, 8 (2). pp. 64-71.
Williamson, Tom and Harrison, Sarah (2007) The Supposed Saxon Earthworks at Rendlesham. The Proceedings of the Suffolk Institute of Archaeology & History, 41 (3). pp. 351-354.
Williamson, Thomas (2007) Archaeological perspectives on estate landscapes. In: Estate Landscapes. Boydell Press, Woodbridge, pp. 1-18. ISBN 978-1-84383-370-3
Williamson, Thomas (2007) 'Floating' in context:meadows in the long term. In: Water Meadows. Windgather Press, Macclesfield, pp. 35-51. ISBN 10-1-905119-12-7
Williamson, Thomas and Cook, Hadrian (2007) Introducing water meadows. In: Water Meadows. Windgather Press, Macclesfield, pp. 1-7. ISBN 10-1905119-12-7
Williamson, Thomas and Cook, Hadrian (2007) The later history of water meadows. In: Water Meadows. Windgather Press, Macclesfield, pp. 52-69. ISBN 10-1-905119-12-7
Williamson, Thomas and Simms, Judy (2007) Nesfield at Taverham. Norfolk Gardens Trust Journal. pp. 13-24.
Williamson, Tom (2007) The Character of Hertfordshire's Parks and Gardens. In: Hertfordshire Garden History. Hertfordshire University Press, pp. 1-25. ISBN 1905313381
Williamson, Tom (2007) The Distribution of "Woodland" and "Champion" Landscapes in Medieval England. In: Medieval Landscapes: Landscape History after Hoskins. Windgather Press, pp. 89-104. ISBN 1905119202
Williamson, Tom (2007) The Landscape. In: Wymondham Abbey: a History of the monastery and parish church. Wymondham Abbey Book Committee, pp. 172-86. ISBN 0-9954-8990-3
Williamson, Tom (2007) Rabbits, Warrens and Archaeology. Tempus. ISBN 9780752441030