The United States of Asgard
A fully realized alternate universe, Asgard has all the trappings of modern American society (cell phones, cars, rock bands, evangelical preachers) but is founded on the tenets of old Nordic religions: the President runs the country from the White Hall alongside a council of Valkyries; gods walk the red carpet with Tinseltown starlets. The U.S. military has a special battalion dedicated to eradicating the threat from Rocky Mountain trolls.
The United States of Asgard consists of three primary books, and includes four additional books that complement the series but are not considered mandatory reads. The current recommended reading order for the series is provided below.