Identifying and Assessing Bookworm Damage

How to identify insect damage in rare books, what it means for condition and value, and how to prevent infestation.

Detailed understanding of specific collecting topics separates informed collectors from casual buyers. Each aspect of rare book collecting has nuances that reward study and attention.

This topic has practical implications for your collecting decisions. Whether you're evaluating a potential purchase, caring for your existing collection, or planning future acquisitions, understanding the specifics covered here will improve your outcomes.

Our perspective draws on extensive experience in the rare book trade. We see the full range of collector experiences — successes and mistakes — and this guide distills practical wisdom that helps you avoid common pitfalls and make better decisions.