Pattern consists of square version and circular version block

If you can do a standard Granny Square will a little adjustment you will be able to make these blocks.
The fabric will be slightly thicker than normal as you are working clusters around posts, so please make sure you are familiar with Front Post Double and Triple Crochet.
Because of the thickness of the block I suggest that you use either a DK or 4ply yarn with the right size hook to ply.
Stitches used:
Double crochet – dc
Slip stitch – sl/st
Chain – ch
Fpdc – front post double crochet
Fptc – front post triple crochet