If you’ve never read anything by Anita Desai, you’re out of excuses. One of India’s most celebrated writers, she’s been publishing for almost 50 years and come close to winning the Booker Prize three times. (Ironically, her daughter, Kiran Desai, beat her to it in 2006 for “The Inheritance of Loss.”) Now she’s released “The Artist of Disappearance,” a collection of three superb novellas that’s a rare gift in the sparse December publishing season. Here, in miniature, you can experience the deceptively subtle, slightly surreal and profoundly insightful fiction of a world-class writer.