See You in the Cosmos is on the shelves of most bookstores in the English-speaking world. But it doesn’t get there automatically. Booksellers have to decide to stock it. And convincing them to stock it (and tell their customers about it) is in large part the responsibility of the publisher sales rep. This week we talk to John Dennany of Penguin Random House Books for Young Readers about the on-the-ground work of traveling to bookstores, giving sales presentations, and about how he knows when a book might be poised to take off.