This book is about wood, the stuff woodworkers work. To thoroughly understand the material, we need to start at the source: trees. Understanding trees and their nature can help us become much more intimate with our material and can provide a broader understanding of how to work it. This first part of the book aims to give you a basic grounding in the properties of wood, from its botanical structure and classification to its identifying characteristics as milled lumber. Becoming familiar with these basic aspects of wood will provide you with essential building blocks for creating a solid foundation for all your future woodworking.