Fiber Fantasy: The Most Complete Fiber Comparison Source Book by Carolyn Hook
This book contains matches for over 3500 shades of color in 39 fibers on today's market, which is potentially over 100,000 matches! Traditional and well-known fibers have been included as well as new and innovative ones. Intended for the needlework enthusiast, this book can be used for designing, color substitution, and aiding in color selection.

Rainbow Gallery Thread Color Comparison Chart by Barbara Robben
This chart does not include metallic or overdyed yarns. Threads listed are: Alpaca 18, Arctic Rays, Backgrounds, Rainbow Cashmere, Designer's Dream, Elegance, Faux Fur, Fiesta!, Flair, Fuzzy Stuff, Grandeur, Hi-lights, Matte 18, Neon Rays, Patina, Pebbly Perle, Rainbow Angora, Rainbow Linen, Rainbow Tweed, Silk & Cream, Splendor, Subtlety, Super-Suede, Twedie 18, Ultra-Suede, Very Velvet, and Wisper.

Splendor Conversion Charts by Pam Miller
Conversions from DMC, Au Ver A Soie, and Anchor to Splendor.