In this chapter, we talk about pruning. Raúl Acha and José Manuel Gómez will explain why vines are pruned and how it is carried out depending on the type of vine. Pruning is conducted in pure winter when the vineyards are practically in a dormant state. It is one of the oldest activities and which has least evolved, the Romans used to do it in the same way as today with very similar tools. By the way, did you know it is said that a donkey taught us how to prune?