This book is a great addition to your collection. To use it, simply open the pages and start reading. When handling, make sure your hands are clean to avoid further soiling. Since it's an older book, be gentle when turning the pages to prevent any tearing. Store it in a dry and cool place to maintain its condition. If you want to display it, keep it away from direct sunlight to avoid fading. And don't worry too much about the library markings; they add a bit of character to the book.