How to prune trees? The easiest way to prune trees, obviously, is to hire somebody. If your budget or some other factor is preventing this there are a few things you should know to help you on your mission. By now I expect you have read the first three volumes of this 4 volume tree pruning series. If you haven’t read the other articles yet, please do before beginning your pruning session. There is a lot more to know than just how to prune a tree.