Originally a collection of essays commissioned by the Simulations Design Corporation (SDC), it became Special Issue #1 of Campaign magazine (not labeled as such, but the Gamer’s Guide to Squad Leader was #2).

This is a collection of essays on game design by nine notable wargame designers written in 1976.

Authors:
Richard Berg
Tom Dalgliesh
John Hill
Don Lowry
Mike McGuire
Al Nofi
John Prados
Randy Reed
Lou Zocchi

Available at Wargame Vault.