Learn to Crochet Granny Squares and Flower Motifs by Nicki Trench
This is the perfect book for beginners as it has full instructions for all the techniques you will need at the start, followed by 25 lovely patterns to put your newly-learned skills to use. New crocheters who want to expand their repertoire will find this book useful and the projects will inspire all crocheters. The repetition of stitches and patterns within granny squares is perfect for mastering the basics, and the squares can then be made up into all sorts of useful and beautiful things, from scarves and blankets to bags and cushion covers. Best of all, you can use up all sorts of yarn from your stash as you practise until your squares are perfect.