Shibori, A Beginner’s Guide to Creating Color & Texture on Fabric by Lynne Caldwell is one of the better books written for artists interested in learning the art of shibori from beginning to some intermediate techniques.
Summary

Comprehensive lists of tools, materials and techniques for four types of shibori
Very good step-by-step instructions accompanied by clear photos and [...]

Creative Batik by Rosi Robinson is a must have for the beginning batik artist and an excellent reference to keep on the shelf for inspiration and instruction in the modern methods of producing batik art cloth.
Summary

Short history of traditional batik
Detailed chapters explaining materials and tools
Easy to follow step-by-step projects, accompanied with beautiful colored photos

Modern batik [...]