A few of my friends often ask me what are the best chocolate books out there, along the years, I have encountered several but only a few are staying by my side at all time.
1. Books needed to make chocolate candy
My absolute favorite is also the most technical, it is called Ganache by Jean-Pierre Richard, this book is especially valuable for its insights on shelf life, and how to relate Activity Water (AW) to time.
My second favorite book is CH by Ramon Morato, I really like the introduction part that takes you through chocolate producing region, the types of trees, and the process to make chocolate. This book is all about chocolate, candies is just the last part of it.
2. Books needed for showpieces and molding
The best book to learn how to make showpiece is Matière Chocolat by Stephane Leroux, simply amazing, easy to understand, great techniques... This comes as a set a "small" book with all the technique and larger book full of picture of showpieces.
Finally my favorite book on molding and assembling small pieces that can be easily sell-able is L'art du montage by Luc Eyriey. Once again, lots of pictures, step by step, and a hundreds of ideas.
I'm a pâtissier globe trotter, always looking for the next thing.