When a writer is praised for having a sense of place, it usually means one specific place — a postage stamp of familiar ground rendered in loving, knowing detail. But Kiran Desai, in her latest novel, “The Loneliness of Sonia and Sunny,” has a sense of places.

This 670-page book, about the star-crossed lovers of the title and several dozen of their friends, relatives, exes and servants (there’s a chart in the front to help you keep track), does anything but stay put. If “The Loneliness of Sonia and Sunny” were an old-fashioned steamer trunk, it would be papered with shipping labels: from Allahabad (now known as Prayagraj), Goa and Delhi; from Queens, Kansas and Vermont; from Mexico City and, perhaps most delightfully, from Venice.

There, in Marco Polo’s hometown, the titular travelers alight for two chapters, enduring one of several crises in their passionate, complicated, on-again, off-again relationship. One of Venice’s nicknames is La Serenissima — “the most serene” — but in Desai’s hands it’s the opposite: a gloriously hectic backdrop for Sonia and Sunny’s romantic confusion.

Their first impressions fill a nearly page-long paragraph. Here’s how it begins.

Sonia is a (struggling) fiction writer. Sunny is a (struggling) journalist. It’s notable that, of the two of them, it is she who is better able to perceive the immediate reality of things, while he tends to read facts through screens of theory and ideology, finding sociological meaning in everyday occurrences. He isn’t exactly wrong, and Desai is hardly oblivious to the larger narratives that shape the fates of Sunny, Sonia and their families — including the economic and political changes affecting young Indians of their generation.