The Historical Dictionary of Japan to 1945 spans the entire period from the earliest evidence of human habitation in Japan through to the end of the Pacific War. It includes substantial topics such as cultural and literary history, with entries ranging from aesthetics to various genres of writing. Other branches of history also feature, such as economic history, industrial history, political history, and so forth. And of course there are the makers of Japanese history, ranging from emperors and shoguns to politicians and extremists - as well as foreign arrivals.

The early history of Japan is told through a detailed chronology, an introductory essay, appendixes, an extensive bibliography, and over 800 cross-referenced dictionary entries on important people, organizations, activities, and events. The Historical Dictionary of Japan to 1945 will appeal to both academics and the general public who have an interest in Japan, particularly those who want reliable information quickly and easily.