 Hey what's up folks, in this project we're 3D printing custom book sleeves. Book sleeves can help protect the binding of a book and illustrate detailed hints about the subject. These detachable covers are usually made out of paper. Our 3D printed sleeves are rigid and help keep the spine of the book in shape. The added dimension can really help show off the artwork and it just looks great displayed on your shelf. You can edit the dimensions, along with any creative details to really customize your books. This is printed with supports to handle the overhangs on the text and the eye opening. Make sure to check out the learn guide for full list of print settings. We designed a sleeve for the watchman so that it lines up with the graphics on the cover. The red drop of blood is extruded separately to add depth to the artwork. The drop of blood was separately printed in red PLA so that we could avoid having to paint the sleeve. Additional parts can be layered on top with adhesives or double-sided tape. And that's it, we think it's a really fun way to customize and protect your books. So which of your favorite books should have custom sleeves? Let us know on Discord and share your projects with us on our weekly show and tell. Thanks for watching and be sure to subscribe for more projects from Adafruit.