My son is 4 right now and he loves this dvd. He will sing the songs, which are the letters and the letter sounds. This brings joy to my heart because my son is autistic and he didn't start talking until after he was 3 years old. So now he's learning letters and their sounds, its a beginning to him saying more words, which is exactly what he's doing. My 2 year old daughter loves it too. She'll sing along with her brother the songs to the letter sounds. Its very catchy, I have the songs in my head most days, lol.