Well I must admit I love Fridays, because the weekend is just around the corner. This is a book of diary entries written by the students at Kola Hill Primary. Read it to find out just why they hate Fridays. The first character introduced in the book. Is Peter Karlos. He is shown to be completely arrogant and holds a very high opinion of himself, believing himself to be more intelligent than all of his peers in the 4th grade. Kathryn is the second character introduced in the book. She is a smart girl but also holds an extraordinarily high opinion of herself (much like Peter) and is incredibly pretentious. Joan Smith is Kathryn's best friend at the beginning of the series, although as the series progresses she becomes more of an independent character in her own right. Sam Lancer is portrayed as a typical immature grade school boy who revels in many gross and puerile things and loves being able to constantly humiliate and tease the girls. David Pierce is a relatively normal boy and best friends with Thadeus after having to sit next to him in 4th grade. He is also the object of many different girls' affections.