The blanket start in the middle. At the beginning you work back and forth rows and then continue in rounds.

The pattern is written and includes crochet charts. There are also photos of special stitches.

For the first part you should be able to crochet the following stitches: slip stitches, chain stitches, single crochets, double crochets, double crochets together, front post double crochets, back post double crochet, star stitch, front post single crochet, crochet fpdc bpdc or dc together, puff stitch

The blanket in the cover picture measures approx. 158 cm x 145 cm
It depends a lot about material and the needle size

In the cover picture:
Yarn: 6000m 3-ply modal yarn from Wolle Kunterbunt mit Herz.
467m = 100g
I crocheted with a size 4mm needle.

The usage also depends very much on the material and needle size.
During the CAL, the usage of 4-ply cotton / acrylic yarn with needle size 4mm was approx. 6700m - 7000m.
If the needle size was changed in between, 6300 - 6500m were sometimes enough