If Joanne Mattera's book is the Encaustic Bible Old Testament, Lissa Rankin's Encaustic Art is the New Testament we've all been waiting for. I've bought all of the encaustic books out there, and too many of them are either vague when it comes to technique or focus mostly on the techniques of only one or two artists. This new book distinguishes itself by demonstrating the techniques of many well respected and accomplished artists, in addition to the techniques used by the author. As a textbook, it's clear, concise, easy-to-follow, and comprehensive. But it's more than just a textbook. I'd highly recommend this book to anyone looking to expand the repertoire of their artistic knowledge, those wishing to better understand encaustic, or even for those just looking for new direction in their art.
My one critique is that I think part of my journey as an artist has been learning my technique by trial and error. This book gives so much detail and so many technique options that I wonder if beginners won't be skipping part of the learning process. By using this book, they will likely skip many of the "mistakes" many artists make while trying to create new effects, "mistakes" that often lead down unexpected creative avenues.
That aside, I think the book is wonderful. You won't be sorry if you buy it.