The Art of Japanese Mending & Stitching. Authors Shannon and Jason Mullett-Bowlsby from Shibaguyz teach 30+ sashiko and boro designs in the traditional Japanese style. This guide includes 9 contemporary projects like a pillow, wall hanging, tote, and kimono jacket. 

This books offers an alternative to traditional sashiko methods incorporating stitching with 12wt Aurifil thread.  However, you can use any sashiko thread like the Daruma or 
Olympus sashiko threads.