Hasbro Heroes Sourcebook: Character Guide

A concise, single-issue reference guide from IDW, this 2017 sourcebook compiles the core lore and character profiles for the major players of the Hasbro Heroes universe—including G.I. Joe, Transformers, and M.A.S.K. It serves as a handy primer for readers navigating the interconnected IDW series, distilling key histories and relationships into a straightforward, canon-friendly handbook.