Interwoven Wisdom: The Work of Irmgard Weitlaner Johnson. Irmgard Weitlaner Johnson (1914-2011) was one of the pivotal researchers of traditional Mexican textiles. Seated next to the weavers, she learned their secrets firsthand, which allowed her to compile a body of work that was both thorough and meticulous, but most importantly, based on a genuine enthusiasm for the craft. Written by Weitlaner’s daughter, Kirsten Johnson—who found inspiration in her mother’s photographs, notes and research as she traveled across Mexico—this book seeks to uncover the knowledge that is hidden in the weft.