From Bulbapedia, the community-driven Pokémon encyclopedia.
Pokémon by Jason R. Rich is a game guide and a walkthrough book containing hints, clues and strategies related to the initial Pokémon games. It was published by Sybex on March 1, 1999 and is 103 pages in length. It is part of the Pathways to Adventure series.
Pokémon belongs to the "Pathways to Adventure" series of official game guides published with Nintendo. "Pokémon" is an enjoyable, illustrated storybook that follows the path of the role-playing adventure in the Game Boy game and, therefore, provides a complete walkthrough of the game.