Whose boat?

Smoke billows up. Cool water flows. Whose boat is that? Do you know? This non-fiction ode to boats features six kinds of workers and their boats - a patrol boat, a tugboat, a car ferry, a fishing trawler, a lifeboat, and a fireboat - with a few different parts of each boat properly labelled.

The answer to each inquiring refrain is revealed under a gatefold, engaging the reader in an informative guessing game.