Aids in the Study of the Maya Codices. Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-85, Government Press, Washington, 1888, pages 253-372, by Thomas Cyrus. This work examines artifacts and textual materials related to the Mayan civilization. The author provides a fundamental analysis of the codes that played a key role in deciphering the culture and traditions of this ancient people. Using his expert perspective on Maya archeology and history, Thomas Cyrus scrutinizes the images, symbols, and writings found in the codices. He points to the importance of these documents for understanding the religious, cultural and social aspects of this ancient civilization. The book contains detailed descriptions and interpretations of the codices, making it an indispensable resource for researchers interested in Maya history. Thanks to the careful analysis and insights of Thomas Cyrus, readers get the opportunity to deepen their knowledge of the mysterious and interesting world of the Maya, as well as to reveal the secrets that are hidden in the ancient manuscripts of this great civilization.