To use this book, simply open it up and start reading from the beginning. It's a great resource for anyone interested in microwave spectroscopy. When handling the book, make sure your hands are clean to avoid soiling the pages. To maintain it, store it on a shelf in an upright position. Try to keep it in a dry and cool place to prevent any damage to the binding or pages. If you need to mark a page, use a bookmark instead of folding the corners.