I was taught to read with Fun With Dick And Jane. While I didn't particularly enjoy that book, I appreciate that it was an important step on my road to reading.
In the words of Anna Quindlen:
It is like the rubbing of two sticks together to make a fire, the act of reading, an improbably pedestrian task that leads to heat and light. Perhaps this only becomes clear when one watches a child do it. Dulled to the mystery by years of STOP signs, recipes, form letters, package instructions, suddenly it is self-evident that this is a strange and difficult thing, this making symbols into words, into sentences, into sentiments and scenes and a world imagined in the mind’s eye. The children’s author Lois Lowry recalled it once: “I remember the feeling of excitement that I had, the first time that I realized each letter had a sound, and the sounds went together to make words; and the words became sentences, and the sentences became stories.”