If you want to protect book corners, or prevent tears from ripping further, then consider buying clear adhesive book corner protectors online. They are see-through, so won't affect your view of the cover, and won't block out titles or images. These corner protectors do not wrap around the cover, but you can place one on the front and one on the back for extra durability. They stop dog ears on soft cover books, and also make a great addition to posters, maps, and any other flexible material that may need extra reinforcement, without an obvious appearance. Clear book corner protectors are made of a 10 mil poly-vinyl blend and offer easy peel-and-stick application. They will not yellow, dry out, or stain your covers, and the adhesive backing has worked well with a huge variety of materials.