Most of us don't remember learning to read but many of us remember being read to by our parents, teachers, or other caregivers. The process of learning to read is actually quite a lengthy and complicated process involving deciphering phenomes (language sounds) and connecting those to the printed alphabet.
The best way to teach young children to read is to read to them. From infancy through preschool age, children are aquiring our language(s) and reading to them is a fantastic way to introduce new and exciting sounds and ideas. By reading to our children we give them many opportunities to hear our sounds (phenomes) and connect them to printed letters (phonics).
Let children pick out the books and read them often. Unlike adults, children don't get bored with reading the same book over and over. They are anticipating the sounds, making connections and enjoying the pictures. Spice it up by changing a word or two...you may find that your child will catch your mistake!