This is an excellent book for reading all four of the Gospels at the same time in chronological order. I have owned a copy since the 1980's, and I finally punched it and put it in a notebook. I have scribbled notes and cross references, added papers with large notes, and I have underlined things unique in one Gospel's telling of a topic as compared to the other Gospels. It has become my most valuable recourse while reading the New Testament. It's a shame it's out of print, as I'd love to buy copies for all my children and grandchildren!
We just completed reading the account of Jesus' life from the Gospels utilizing this reference. It really makes it clear to the kids how the different writer's accounts overlap, and how some stories are only told in one book.