Pokemon Adventures Volumes 1-40

The various chapters of Pokémon Adventures span the generations of Pokémon games so far.
Red, Green & Blue
The first chapter of Pokémon Adventures chronicles the journeys of three trainers, Red, Blue and Green across the Kanto region, conquering its Gyms and the Pokémon League.
Yellow
This starts two years after the setting in the previous chapter, and features Yellow, in the quest to hunt for Red.
Gold, Silver & Crystal
Features the intertwining adventures of three trainers G, S & C as they battle it out in the Johto region amidst sinister plots
Ruby & Sapphire
Featuring the region of Hoenn, this involves two rival trainers Ruby and Sapphire, as they try to conquer all the Pokemon Contests and Gyms respectively
FireRed & LeafGreen
This continues the adventures of Red, Blue and Green as they tackle Team Rocket and much more in Sevii Islands.
Emerald
Features the Battle Frontier and Emerald, who must conquer it faster and better than Guile Hideout, another evil organisation.
Diamond & Pearl
It follows the adventures of Diamond, Pearl, and Lady Platinum Berlitz as they travel through Sinnoh towards Mt. Coronet to fulfill a family tradition, due to a misunderstanding.
Platinum
Follows Lady Platinum as she enters the Battle Frontier to gather information on the mysterious Distortion World to rescue two important people. Joining her is Looker.