This cardigan is made from the top down with a raglan style yoke, then joining the yarn to make the sleeves and button bands. Each size is written separately with the bottom pattern, rib edging and button bands written in the notes for all sizes.

Written in English US terms with abbreviations for UK terms

Materials
dk / weight 3 yarn (metres in the size chart) I used Stylecraft Bambino shade Sage 268 metres per 100g ball
3.5 and 4mm crochet hooks
4-7 x 15mm buttons

The PDF is 38 pages with plenty of pictures.