This 'Modern College Geometry' book is a great resource for students or anyone interested in geometry. To use it, simply open it up and start reading through the chapters. As it's an old book, handle it gently to avoid further wear and tear. When not in use, store it in a dry and cool place to prevent any damage from humidity. Don't write on the pages to keep its original condition intact. If you want to take notes, use a separate notebook. And always be careful when turning the pages to avoid ripping them.