If you have two pieces of crochet to sew together, use the Mattress Stitch! A favorite when joining crocheted granny squares or crocheted clothing.
How to Sew a Mattress Stitch Crochet Seam - A Crocheted Simplicity
4 Ways to Join Crochet Pieces Together
How to Crochet the Uneven Berry Crochet Stitch - Heart Hook Home
How to Crochet the Uneven Berry Crochet Stitch - Heart Hook Home
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How to CROCHET the MATTRESS STITCH - Seamless Sewing
How to Sew Crochet Pieces Together Using the Mattress Stitch
Mattress Stitch – Kelbourne Woolens
How to Work Mattress Stitch Seams Three Ways for Knitting