The Advanced Dungeons and Dragons Manual of the Planes 1st Edition, published by TSR in 1987, is a highly sought-after collectible for fans of the popular role-playing game. This manual delves into the detailed world of the planes, providing players with a comprehensive guide to navigating the various realms and dimensions of the D&D universe. With its focus on the wargames and role-playing aspects of the game, this manual is essential for enhancing gameplay and creating immersive adventures for players.
This was, I think, the last AD&D (1st Edition) rule books produced, and I missed it at the time.
Its not going to change your life, but it lets me complete my set of what was (IMHO) the best (most fun) D&D edition.