I've read some others about the Synoptic Problem, and some were very confusing, and I am no beginner of NT studies. This one is very easy to understand. I found this very funny: "It is a fundamental assumption of the study of the Synoptic Problem that the first three Gospels share some kind of literary relationship. In other words, there is some degree of dependence in some direction at a literary level. Occasionally a dissenting voice will sound, but, on the whole, this is a firm consensus in scholarship, and perhaps the last one in the subject..." It seems I am not the only one confused. One other reviewer said we can get this book free at Internet Archive. This is true (at the time of me writing this review), and I certainly would not pay as much as these third party sellers are asking at the time of this writing for this book of the series or any other. After establishing a literary dependence among the synoptics (Matthew, Mark, and Luke) the author argues in favor of Markan Priority (that M and L used Mark which is fairly solid ground in my opinion. Then he gives arguments for and against Q. The letter Q is used for a hypothetical source (never found as a hardcopy) that Matthew and Luke used independently. Q stands for the German word Quelle which mean source. The author wrote: "Now it is my view, as I have already hinted, that each one of the standard arguments for Q is capable of refutation. Not only has the persuasiveness of the standard arguments been greatly overestimated by many scholars but the same scholars have also tended to underestimate the positive evidence in favour of Luke's use of Matthew. Let us proceed through the next part of the maze, then, following this route. First, we will look at answers to the arguments for Q that were laid out in the previous chapter, noting that not one of them is strong enough to make the case." It is refreshing to see both an easily comprehended work that covers the basics and lays out arguments about Q, especially against. This is because so many works written about the Gospels just go ahead and assume Q and base further argumentation upon its existence. Well, it's not so simple, and they don't call it the Synoptic Problem for nothing. Therefore, I heartily recommend this book for beginners and those who want to hear some arguments about Q provided the price is reasonable.