Approximately, only 1/8 of an iceberg is above water, the rest submerged underneath. Hemingway believed that stories should be written like icebergs; a writer should omit details of a story for the readers to figure out what really lies below the surface. He coined the term "iceberg theory," which is also known as the "theory of omission," and emphasized:
The crux of the story lies below the surface and it should be able to shine through.
Hemingway was a journalist. As a journalist, his writings were extremely succinct, concise, with very little elaboration or context. This style persisted through short stories and novels, and he focused on the "surfaces of the iceberg," and concealed underlying themes. Therefore, even the true feelings or the meanings behind actions of the protagonists are often concealed for the readers to infer themselves.
Biographer Carlos Baker writes:
Since Hemingway began writing short stories, he learned how to "get the most from the least, how to prune language, how to multiply intensities and how to tell nothing but the truth in a way that allowed for telling more than the truth."
Hemingway usually writes in terse, bullet-like sentences, but when he does occasionally write sentences that are few hundred words in length, he often employs polysyndetons. Polysyndeton is the technique which replaces commas or other possible punctuation marks with conjunctions, thus making the clauses in the sentence each hold equally great significance and evoking a sense of hurriedness and anxiety. Hemingway is famous for his frequent use of polysyndetons and he did so in order to express urgency. Another effect of using polysyndeton was to make his stories sound colloquial. His stories contain many dialogues and this particular technique makes the dialogs more realistic and relatable.