Being able to read is a vital life skill, so make the early stages of learning the alphabet as fun as possible for your preschooler. Preschoolers learn and develop best through using their whole body, all of their senses and their natural environments. You’ll find that most preschoolers begin to recognise letters when they’re about 2 to 3 years old, and are able to identify a large number of letters between 4 and 5 years old.