In keeping with Vonnegut's signature style, the novel's syntax and sentence structure are simple, and irony, sentimentality, black humor, and didacticism are prevalent throughout the work.[8] Like much of his oeuvre, Slaughterhouse-Five is broken into small pieces, and in this case, into brief experiences, each focused on a specific point in time. Vonnegut has noted that his books "are essentially mosaics made up of a whole bunch of tiny little chips...and each chip is a joke." Vonnegut also includes hand-drawn illustrations in Slaughterhouse-Five, and also in his next novel, Breakfast of Champions (1973). Characteristically, Vonnegut makes heavy use of repetition, frequently using the phrase, "So it goes". He uses it as a refrain when events of death, dying, and mortality occur or are mentioned; as a narrative transition to another subject; as a memento mori; as comic relief; and to explain the unexplained. The phrase appears 106 times.[9]
The book has been categorized as a postmodern, meta-fictional novel. The first chapter of Slaughterhouse-Five is written in the style of an author's preface about how he came to write the novel. The narrator introduces the novel's genesis by telling of his connection to the Dresden bombing, and why he is recording it. He provides a description of himself and of the book, saying that it is a desperate attempt at creating a scholarly work. He ends the first chapter by discussing the beginning and end of the novel. He then segues to the story of Billy Pilgrim: "Listen: Billy Pilgrim has come unstuck in time", thus the transition from the writer's perspective to that of the third-person, omniscient narrator. (The use of "Listen" as an opening interjection has been said to mimic the opening "Hwaet!" of the medieval epic poem Beowulf.) The fictional "story" appears to begin in Chapter Two, although there is no reason to presume that the first chapter is not also fiction. This technique is common in postmodern meta-fiction.[10]
The narrator explains that Billy Pilgrim experiences his life discontinuously, so that he randomly lives (and re-lives) his birth, youth, old age and death, rather than experiencing them in the normal linear order. There are two main narrative threads: a description of Billy's World War II experience, which, though interrupted by episodes from other periods and places in his life, is mostly linear; and a description of his discontinuous pre-war and post-war lives. A main idea is that Billy's existential perspective had been compromised by his having witnessed Dresden's destruction (although he had come "unstuck in time" before arriving in Dresden).[11] Slaughterhouse-Five is told in short, declarative sentences, which create the impression that one is reading a factual report.[12]
The first sentence says, "All this happened, more or less." (In 2010 this was ranked No. 38 on the American Book Review's list of "100 Best First Lines from Novels".)[13] The opening sentences of the novel have been said to contain the aesthetic "method statement" of the entire novel.[14]
