There are 20 Northern Constellation cards in this set - Cassiopeia, Cepheus, Draco, Ursa Major, Ursa Minor, Bootes, Hercules, Lupus, Andromeda, Cetus, Pegasus, Perseus, Aquila, Cygnus, Delphinus, Lyra, Auriga, Canis Major, Columba & Orion.These cards can be used in multiple ways.- use just the first set as flash cards or control cards.- use just the second set and match word to image/object.- as 3-part cards for matching picture to picture and word to word Great for learning vocabulary, help