Ian McEwan in The New Yorker:
When a character in my recent book, “Sweet Tooth,” publishes his short first work of fiction, he finds some critics are suggesting that he has done something unmanly or dishonest. His experience reflects my own. A novella? Perhaps you don’t have the necessary creative juice. Isn’t the print rather large, aren’t the lines too widely spaced? Perhaps you’re trying to pass off inadequate goods and fool a trusting public. Composers, including those of the highest rank, have never had such problems of scale. Who doubts the greatness of Beethoven’s piano sonatas and string quartets or of Schubert’s songs? Some, like me, prefer them to the symphonies of either man. Who could harden his heart against the intimate drama of Mozart’s G minor trio, or not lose himself in the Goldberg variations or not stand in awe of the D minor Chaconne played on a lonesome violin?
Strangely, the short story never arouses suspicion of short-changing, probably because the form is so fundamentally different from the novel. I believe the novella is the perfect form of prose fiction. It is the beautiful daughter of a rambling, bloated ill-shaven giant (but a giant who’s a genius on his best days). And this child is the means by which many first know our greatest writers. Readers come to Thomas Mann by way of “Death in Venice,” Henry James by “The Turn of the Screw,” Kafka by “Metamorphosis,” Joseph Conrad by “Heart of Darkness,” Albert Camus by “L’Etranger.” I could go on: Voltaire, Tolstoy, Joyce, Solzhenitsyn. And Orwell, Steinbeck, Pynchon. And Melville, Lawrence, Munro. The tradition is long and glorious. I could go even further: the demands of economy push writers to polish their sentences to precision and clarity, to bring off their effects with unusual intensity, to remain focussed on the point of their creation and drive it forward with functional single-mindedness, and to end it with a mind to its unity. They don’t ramble or preach, they spare us their quintuple subplots and swollen midsections.
More here.