My 3 year old already knew all her letters and letter sounds. One day she asked for me to teach her how to read like her older sisters. She gets excited each time I use 100 easy lessons with her. She says it is so much fun.
I started this book with my nearly 5 year old. I was very thankful for the forward at the beginning - which is a must-read for every parent so you understand where the book is coming from. Everything went well until we got to the "rhyming" sections. My son stalled. "I can't do this!" he would cry. I realized that he was already learning true rhyming and sound blending was not it in his mind, so it was too hard for him to do. My sister-in-law suggested changing the wording in the script to "word friends" or something less intimidating (and he loves watching PBS's Word World). I decided on "sound friends." At first he was very leary to try again, but once he realized we weren't "rhyming" anymore, he is doing great and loving it! It is so cool to see him catch on and start reading. So on making this one change with the book, I would highly recommend it.
My son, after finishing kindergarten, was still unable to recognize letters and sounds. After using "Teach Your Child to Read in 100 Easy Lessons", he was reading in 3 months. I highly recommend this text.
I have taught two of my three children to read with this book (and the third will be starting in a couple of years). It is not flashy or exciting, but it is easily manageable and gets the job done. Both of my boys have been stellar readers after finishing this book, one at the age of FOUR and the other at the age of six. We had no problem moving from this book into I Can Read It type books, and just used the list suggested by the SonLight curriculum company for the last part of their first grade program.