Charcoal

Charcoal is a burnable resource acquired by chopping down a burnt Tree.

It is advisable to burn smaller trees as the charcoal yield is always 1 per tree. They burn at the same efficiency as logs, but can stack up to 40 rather than 20.

A good tactic is to plant a bunch of pine cones adjacent to each other than run through them with a torch. After the chaos has subsided the player can cut down the trees to retrieve the charcoal; but beware that fire can destroy any item that falls into it so always wait until all the fire is gone before cutting. Be careful though, and do his far away from your base, or you may burn it down.

One of the best ways to set a tree on fire is to grab a torch and click on a tree, like in the picture below.

When having issues with a slow computer and thus not being able to efficiently set trees on fire, this is an advisable tactic:

1) Plant some pine cones and clump them together.

2) Light a fire nearby and then fill it at maximum until it spills over and the trees get set on fire. (Make sure the fire gets put out before chopping down the trees as they can catch fire. It is advisable to play as Willow as she is immune to fire damage).