Each year, millions of people become American citizens at birth. Thousands more are naturalized as adults. Becoming an American Citizen explains how these processes work. Clear text, helpful sidebars, and color photographs give readers a compelling overview of this important subject. Features include fast facts, a table of contents, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.