Each fair history has its own annotated bibliography which provides, when possible, the location of relevant primary sources and comments on the quality of secondary sources. Appendices cover the Bureau of International Expositions, fair statistics, fair officials, fairs that did not qualify for inclusion, and fairs that were planned but never held. The book includes a foreword (and appendix) by Vicente Gonzalez Loscertales, the secretary general of the Bureau of International Expositions.