This nonfiction follow-up to Whose Tools? features six kinds of trucks--a utility truck, a fire truck, a snowplow, an ambulance, a crane, and a broadcasting truck--with five different parts of each truck properly labeled. The answer to each inquiring refrain of "Whose truck is this?" is revealed under a gatefold, engaging the reader in an informative guessing game about trucks and their operators. With lyrical (and factual ) text by New York Times bestselling author Toni Buzzeo, and the expertly stylized art of Jim Datz, this sturdily constructed board book is perfect for curious and playful young readers.