When you set out to arrange something, how do you decide where the pieces go? Is it based on what looks right to you, what you believe goes together, or what someone told you to do? Or maybe you let gravity or the alphabet determine the order?
To effectively arrange anything, we have to choose methods for organizing and classifying content in ways that convey the intended information to our intended users.
Structural methods for organization and classification are called taxonomy.
Common examples of taxonomies include: