To use this book, start by skimming through the table of contents to find the topics you're interested in. As the pages are slightly yellowed and some are a bit hard to turn, handle it gently to avoid tearing. When you're done reading, store it on a dry and clean shelf. Avoid placing heavy objects on it as the covers have some wear. If you notice the staining from the spiral binding getting worse, you can consider replacing the binding. Also, be aware that the writing from the former owner might be a bit distracting, but it adds to the book's history.