The American collection Animal Crossing-e contains 326 cards, divided into four series, plus two promotional cards. Series 1 has 66 cards, Series 2 has 71 cards, Series 3 has 94 cards and Series 4 has 95 cards. There are several types of cards, but they're all designed to work with the GameCube title "Animal Crossing."
The Japanese collection Doubutsu no Mori e+ works with the re-released version of Doubustu no Mori for the GameCube. It expands the previous game's support for the e-Reader with the introduction of 66 new villagers and 18 new islanders, totaling up to 84 new characters. As well as villager cards, there are music cards.