REA's Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. United States History: 1789 to 1841 includes Washington and the Federalist Era, the Jeffersonian Era, the War of 1812, the Monroe presidency, the Marshall court, the Missouri Compromise, Jacksonian Democracy, Ante-Bellum culture, Manifest Destiny, and increasing sectional stress.