Published by Kumon Publishing. A card set for learning idioms, for preschool children to all ages. - Title: Kumon Idiom Cards, Volume 1 - Title: Kumon Idiom Cards, Volume 2 Each set contains 31 cards, but card number 1 (to listen intently) from Volume 2 is missing, so there are a total of 61 cards. These are used items that a child has used. The box has some age-related wear and tear, and some tears, but the cards are in almost perfect condition. Since one card is missing, we will sell them at a reduced price.