This basic book sleeve is made up entirely of double crochets and single crochets with a mesh detailing at the top for the drawstring to fit.

Gauge for this is not terribly important and the stitch pattern does allow for some stretch. A standard A5 book is meant to fit, however, due to the strecth it could fit something slightly bigger.

You will need roughly 100g of DK weight cotton and a 4.5mm hook, scissors to cut the yarn. Stitch markers are optional.