Pyrography for Beginners is a comprehensive guide to the art of burning designs into wood and other materials. This book provides step-by-step instructions on how to use a pyrography tool, as well as tips and tricks for creating beautiful works of art
From Wikipedia
Pyrography or pyrogravure is the free handed art of decorating wood or other materials with burn marks resulting from the controlled application of a heated object such as a poker. It is also known as pokerwork or wood burning.