From Bulbapedia, the community-driven Pokémon encyclopedia.
Eric Medalle and his wife
Eric Medalle is an illustrator for the TFG of Pokémon, and is the Design Director at The Pokémon Company International. He has designed or co-designed almost every international TCG logo since Nintendo took control of card production. Medalle is also responsible for designing the logos for Pokémon Dream Radar and Pokémon the Series: XY.