This book walks you through the simplest imaginable headbands to those that will challenge your skills!
Many of the headbands included are flexible about the yarn choices available - even working well with 3 or more weights of yarn - and I use a easy trick to avoid making a gauge swatch with many of the headbands!
This book is very image-rich, and most of the patterns are shown made in 2 or 3 different yarns.