Clamber up branches and peek through leaves to discover the wonderful jobs trees do, from cleaning our air and keeping us cool to protecting our planet and providing homes for all kinds of wildlife.
In the depths of the Cotswolds, near Tetbury in Gloucestershire, lies one of the most beautiful tree gardens in the world, known as Westonbirt Arboretum.
The ideal portable companion, the world-renowned Collins Gem series returns with a fresh new look and updated material.