The Complete Peanuts: 1953 - 1954 by Charles Schulz
I love Peanuts. I'm really enjoying watching how this evolved over the years. July 1954 saw the introduction of Pig-Pen and May saw the introduction of Linus' blanket.
I also thought there was only 3 books in this series because that was all I saw on the shelves at work. Silly me. A little extra research show there are 14!! Yay!!!