This pattern is within a written blog post and YouTube video (link in blog post). They have all the info you need to make your own Harry Styles Cardigan.

Included is the chart for laying out the squares and a chart for the colour work squares. The video includes a couple of tutorials for trickier bits as well as general guidance for construction.

There is also advise on sizing up and down.

I made mine in a selection of aran weight yarns, all different brands and different fibre contents. It is a proper stash buster!