You will also need:
1 3.50mm crochet hook.
3 [3 : 3 : 4 : 4 : 4] buttons for Cardigan.
4 [4 : 4 : 5 : 5 : 5] buttons for Hooded Gilet.
2 buttons for Sweater with Long and Short Sleeves.
Tension:
18sts and 11 rows to 10cm (4in) over trebles using 3.50mm (UK 8, USA F5) crochet hook.
1 motif = approximately 6cm (2.5 in) square using 3.50mm (UK 9, USA E4) crochet hook.