Several double crochet techniques, Phil Perle 5, and you'll have the gorgeous Elvira Sweater.
Materials Required
To make the Elvira sweater you will need:

• PPY range crochet hook no. 2
• Crochet hook no. 2.5/3/3.5 (depending on size)
• Stitch markers
• Darning needle

Instructions in the following sizes: 34/40, 42/44, 46/52
Techniques Used

• Magic ring
• Chain stitch
• Slip stitch
• Single crochet
• Double crochet
• 3 double crochets worked together
• Crab stitch
• Quadruple treble crochet
• Picot
• Ribbed double crochet
• Front post double crochet
• Back post double crochet
• Granny square
• Half-granny square

Pieces to Make:

• Granny square
• Half-granny square
• Back
• Front
• Finishing band