If your child is fascinated by transportation books, check out "Machines Go to Work in the City" (Henry Holt, $16.99). Huntington author and illustrator William Low provides a close-up look at some cool vehicles (tower crane, garbage truck, vacuum truck and more). Even better, Low invites young readers to answer a key question about each vehicle, then provides the answer when they lift a flap. Low ends the story with a picture glossary of the vehicles.

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Lincoln Borglum was a teenager when his father, sculptor Gutzon Borglum, began work on what eventually would become the Mount Rushmore presidential sculptures. After his father died, Lincoln took over as the head of the project. As author Tina Nichols Coury shows in "Hanging Off Jefferson's Nose" (Dial, $16.99), Lincoln played a pivotal role in ensuring that the iconic monument was completed.

When Barnum Brown was born on Feb. 12, 1873, his parents decided to name him after the most famous circus owner, P.T. Barnum, in hopes the name would inspire him to do, as author Tracey Fern says, "important and unusual things." So begins a captivating look at the man who did, indeed, make a name for himself -- he discovered the bones of the T. rex. In "Barnum's Bones" (FSG, $17.99), Fern portrays a man obsessed with hunting fossils whose hard work eventually pays off.