Knutson, Linda. Synthetic Dyes Natural Fibers.

    Revised edition. Loveland, Colorado; Interweave Press, 1986

Blumenthal, Betsy and Kreider, Kathryn. Hands on dyeing

    Second edition. Loveland, Colorado: Interweave Press, 1988

Johnson, Ann. Color by Accident. Third edition, Lake Oswego, OR,

     Ann Johnson, Publisher, 2000

Johnson, Ann. Color by Design. First edition, Lake Oswego, OR,

     Ann Johnson, Publisher, 2001

Klos, Dagmar. Dyer’s Companion. First edition. Loveland,

     Colorado: Interweave Press, 2004

Menz, Deb. ColorWorks, First edition, Loveland, Colorado,

    Interweave Press, 2004.

Taylor, Kathleen. Yarns to dye for. First edition, Loveland, Colorado,

     Interweave Press, 2005

Vogel, Lynn. The Twisted Sisters Sock Workbook. First edition, Loveland, Colorado,

     Interweave Press, 2002

Wilcox, Michael. Blue and Yellow Don’t Make Green. Revised edition, Cincinnati, OH,

    North Light Books, 1994.