Pattern includes comprehensive photo tutorials for joining as you go and how to change colours. I have also included links to video tutorials for all the main techniques used.

The actual amounts of yarn I used to make the sample are as follows:
255g Barneveld (white) 1005 (MC)
40g Maastricht (light red) 1246 (CC1)
22g Roermond (dark red) 1123 (CC2)
24g Gent (light orange) 2002 (CC3)
13g Leeuwarden (dark orange) 1711 (CC4)
32g Brussel (light yellow) 2004 (CC5)
12g Coevorden (dark yellow) 1823 (CC6)
17g Malmedy (light green) 2014 (CC7)
15g Utrecht (dark green) 1009 (CC8)
56g Geraardsbergen (light blue) 2011 (CC9)
21g Harlingen (dark blue) 1825 (CC10)
22g Antwerpen (light purple) 2001 (CC11)
28g Deventer (dark purple) 1425 (CC12)
36g Veenendaal1064 (brown) (CC13)