The PDF file includes:
1) colour block instructions
2) a colour chart.

This pattern is written in US terms

MATERIALS
– DK (3, Light) Yarn in 3 contrasting colours
– 4.0-mm (G/6 USA, 8 UK) Hook
– Tapestry Needle

YARN
I used Stylecraft Special DK yarn

SIZE
(W) 9.8” (25 cm) by (L) 7.9” (20 cm).