This book about plant pathology is a great resource for learning. To use it, simply open it up and start reading through the chapters. You can take notes in a separate notebook if you want. When handling the book, be gentle because the binding is a bit loose. To keep it in good shape, store it in a dry and cool place. Don't expose it to direct sunlight for long periods as it may cause the pages to yellow further. If you notice any loose pages, you can use a bit of tape to hold them in place carefully.