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200 Crochet Blocks for Blankets, Throws, and Afghans: Crochet Squares to Mix and Match

The Granny Square Book: Timeless Techniques and Fresh Ideas for Crocheting Square by Square

50 Fabulous Crochet Squares (Leisure Arts #4420)

Beyond the Square Crochet Motifs: 144 circles, hexagons, triangles, squares, and other unexpected shapes

The Big Book of Granny Squares: 365 Crochet Motifs

Around the Corner Crochet Borders: 150 Colorful, Creative Edging Designs with Charts and Instructions for Turning the Corner Perfectly Every Time

101 Granny Squares: New Motifs For Contemporary Designs

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63 Easy-To-Crochet Pattern Stitches Combine To Make An Heirloom Afghan (Leisure Arts #555)

Mandalas to Crochet: 30 Great Patterns