The Get Ready For the Code books are great because they have multiple pages for each letter unlike other letter books I've seen. They use a lot of repitition which works well. My boys love doing them. I did notice that the pages of the B book are a little lower quality than the pages of the A book.
I didn't know what to expect with this book, but I've heard good things, so I thought we'd give it a try. I'm homeschooling my 3 kids and needed something for my "Young 5's" kid. He was struggling with the curriculum I bought, it didn't give enough practice on each letter sound; the pace was too fast for him. He and I both love this book. When I get it out he says "Yay, I love this book 'cause I'm SOOO good at it!" I love that! After trying many phonics programs like Hooked on Phonics, Spectrum Phonics, Red Plaid books, BOB books, Starfall, and others that just didn't work for my older 3rd grade son who is still struggling, I wanted to give my other kids a better start. I am feeling much better about this one!
My almost four year old daughter has loved doing the Get Ready, Get Set, and Go for the Code workbooks. It has really helped her with writing her letters and she loved all the activities in each section. I am definitely glad that we started at this level for her as it has given her such a great sense of accomplishment to have simple activities to do while working on her letter writing and sounds.
Overall I really like the explode the code series. I have two children using it 5 and 4 years old. I don't like the fact that book b uses jack-o-lanterns for th letter j. We are Christian and don't celebrate halloween. I was surprised that a Christian book company would sell a product with this image. I did not want to send the book back, so I tore out a couple of pages and whited out the small images of jack-o-lanterns. If you don't mind this, the books are great. I have used books A,B,C,1, 1 1/2. I plan to purchase book 2 very soon.