In Pokémon, each Pokémon changes into a new version of itself, and each change is called an evolution.
We've matched up books to each stage of our favorite Pokémon's evolution: kid books for unevolved > teen books for first evolution > adult books for fully evolved Pokémon.
Evolution: Bulbasaur > Ivysaur > Venusaur
KIDS - Bulbasaur (Seed Pokémon): A seed was planted on its back at birth. As it grows, the seed also grows.
TEENS - Ivysaur (Seed Pokémon): The bulb on its back grows by drawing energy. When the bud starts to smell sweet, a large flower is ready to bloom.
ADULTS - Venusaur (Seed Pokémon): The flower on its back absorbs sunlight which is used for energy.
Evolution: Charmander > Charmeleon > Charizard
KIDS - Charmander (Lizard Pokémon): The flame on its tail indicates its life force, the flame burns brighter if it is healthy.
TEENS - Charmeleon (Flame Pokémon): When it swings its burning tail, it can raise the temperature to unbearably high levels.
ADULTS - Charizard (Flame Pokémon): Spits fire so hot it can melt boulders.
Evolution: Squirtle > Wartortle > Blastoise
KIDS - Squirtle (Tiny Turtle Pokémon): Has a shell that hardens after it is born. Can spray water from its mouth.
TEENS - Wartortle (Turtle Pokémon): Its tail is a symbol of longevity, covered with a rich, thick fur.
ADULTS - Blastoise (Shellfish Pokémon): Can blast jets of water from its shell that can punch holes in thick steel.
Evolution: Caterpie > Metapod > Butterfree
KIDS - Caterpie (Worm Pokémon): Releases a horrible stench from its antenna to protect itself.
TEENS - Metapod (Cocoon Pokémon): Hardens its shell to protect itself while preparing to evolve.
ADULTS - Butterfree (Butterly Pokémon): Flaps its wings at high speed and releases toxic dust into the air.
Evolution: Pichu > Pikachu > Raichu
KIDS - Pichu (Tiny Mouse Pokémon): Can zap adult humans, but not yet skilled at storing electricity.
TEENS - Pikachu (Mouse Pokémon): Stores electricity in its cheeks. Raises its tail to monitor surroundings and sometimes get struck by lightning in this pose.
ADULTS - Raichu (Mouse Pokémon): It's tail serves as a ground to protect itself from its high voltage power. Becomes feisty when electricity builds up.
Evolution: Igglybuff > Jigglypuff > Wigglytuff
KIDS - Igglybuff (Balloon Pokémon): Has a soft body that is impossible to stop once it starts bouncing.
TEENS - Jigglypuff (Balloon Pokémon): It sings a relaxing melody that will lull its enemies to sleep.
ADULTS - Wigglytuff (Balloon Pokémon): Super soft fur and can suck in air and inflate itself to enormous size.
Evolution: Mudkip > Marshtomp > Swampert
KIDS - Mudkip (Mud Fish Pokémon): Its fin senses movements in the water.
TEENS - Marshtop (Mud Fish Pokémon): Fast at traveling through mud with toughened hind legs.
ADULTS - Swampert (Mud Fish Pokémon): Very strong with rock-hard arms. Powerful vision lets it see in murky water.
Evolution: Pidgey > Pidgeotto > Pidgeot
KIDS - Pidgey (Tiny Bird Pokémon): Dislikes fighting, will kick up sand to protect itself.
TEENS - Pidgeotto (Bird Pokémon): Constantly flies around in search of prey. Can see movements of its prey from up high with its outstanding vision.
ADULTS - Pidgeot (Bird Pokémon): Can fly at Mach 2 speed and can can cause a windstorm by flapping its wings.