The outside of the cover is a simple pattern, done by alternating a Tunisian simple stitch with twisted simple stitch. (Stitch V1.2 from The Harmony Guides 220 More Crochet Stitches Vol.7.) The inside cover flaps are just sc. The border is a reverse sc.

The larger hook was the afghan hook for the cover, the smaller hook was the regular hook for the inside flaps and border.