The Worlds of Junípero Serra: Historical Contexts and Cultural Representations (UC Press, 2018).  Edited Volume.

Global Americans: A History of the United States (Cengage, 2017). Co-author

Junípero Serra: California’s Founding Father (Hill and Wang, a division of Farrar, Straus and Giroux, 2013).  Named a top ten book for 2013 by Zocalo Public Square and a finalist for best book of the year by the Southern California Independent Booksellers’ Association.

Alta California: People in Motion, Identities in Formation  (Huntington Library Press and UC, 2010).  Edited volume.

Children of Coyote, Missionaries of Saint Francis: Indian-Spanish Relations in Colonial California, 1769-1850 (Omohundro Institute of Early American History and Culture, 2005). Awards;  W. Turrentine Jackson Award for the best first book on the American West published in the last two years, Western History Association, 2007; Erminie Wheeler-Voegelin Prize for the best book-length work in the field of Ethnohistory, American Society of Ethnohistory, 2006; James Broussard Prize for the best first book, Society for Historians of the Early American Republic, 2006; Hubert Herring Book Award, Pacific Coast Council on Latin American Studies, 2006; Norman Neuerburg Award for the best book on California before the Gold Rush, Historical Society of Southern California, 2006