I happened to stumble across Brain Quest for Threes and bought it because it's compact packaging looked convenient. I put in my car to pull out whenever I brought my 3 and 5 year olds to appointments or weekends away. I was thrilled to discover that my kids really enjoyed playing the game and I could easily play with them both by taking turns. There are so many questions that the cards always seem new. My 5 year old often pulls it out to play by herself and the easy to understand answer cards allow her to do so. I have purchased other Brain Quest products for the subsquent age groups.