Charles & Wonder

Charles & Wonder released an edition in 2014 of The Expert “which restores Erdnase's classic text to its original condition, reversing decades of modification that have gradually effaced the author's writing.” —Quoted from description on Amazon.com.

This version has been edited by Marty Demarest, and also features reworked illustrations, and adds an index. The publishers have also added an “Errata” sheet.

american variants of ERDNASE