I bought the Pass the 6 by Walker for my son who is study to get his license and after reading it, he was struggle with the practice tests. He did not like the way Walker was presenting his material. I went back to Amazon and picked up this study guide and sent it to him and he says this explains the information much better. He understanding of all of the parts of the puzzle are coming together. So after a weekend of studying with this book he is feeling more confident about passing the 6. Thank goodness I went back and looked for a better prep guide.