Double Two-Tie Unit Weaves by Barrett and Smith
This is a fascinating study of multiple-harness weaves, compiled from Eunice Smith's handouts, projects, and notes from years of workshops and study sessions. Using fewer harnesses than you would expect, you can produce a large range of fabric structures and effects from a single threading system, which is an extrapolation of Summer and Winter weave structures. This collection of interesting twills and color patterns is explained through plenty of pattern drafts and discussion by Clotilde Barrett, and enhanced with photos of completed projects using fabrics woven through the included methods.
Glimakra USA 2018. 87 pages, paperback.