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The author's own site provides an autobiography and extensive bibliography.

A probabilistic method of assessing the risk of harm posed by trees. Includes information on training and a directory of trained users.

The home of French language schools & French language learning programme centre in France. The premier chateau for weekly French visits from UK school groups ...

Includes collection of tree care advice for the consumer, provided by the International Society of Arboriculture.

Help us find those undiscovered fat, old, gnarled ancient trees hidden throughout the UK

One step ahead from other betters

Independent charity working with local communities on tree planting projects in urban areas.

Charity recording Britain's largest trees. Information on measuring and reporting trees. The database of champion trees can be accessed by paid members.