A novella is a short work of fiction, usually between 20, 000 and 40, 000 words. A cento is a poem composed of lines taken from other works. An ESSAY is a piece of writing that gives the author's own argument. An opus is a large or important work of art, music, or literature. An ODE is a lyrical poem that expresses strong emotion. A BOOK is a set of written, printed, illustrated, or blank sheets, made of ink, paper, parchment, or other materials, usually fastened together to hinge at one side. An epos is an epic poem or story. An EPODE is a type of poem consisting of alternating lines of iambic trimeter and iambic dimeter. A SATIRE is a work of literature or other art form that uses humor, irony, exaggeration, or ridicule to criticize or comment on society or individuals.