Final answer:
The Florentine Codex is considered the most popular form of Aztec literature post-conquest, documenting a wide array of Aztec life and knowledge through text and images.
Step-by-step explanation:
The most popular form of Aztec literature, particularly after the Spanish conquest, is arguably the Florentine Codex. Compiled by the Spanish priest Bernardino de Sahagún with the assistance of his native students, the Florentine Codex is an extensive work that spans 2,400 pages and includes over 2,000 images. It is organized into twelve books and provides a detailed account of Aztec culture, cosmology, and rituals, as well as offering insights into social, economic conditions, and the history of the Aztec people. In a broader context, Aztec literature also included highly esteemed songs, music, and poetry which often had multiple layers of meaning related to war, deities, and nature. These literary forms were supported through various arts such as contests and performances. Moreover, although not possessing a complete writing system, the Aztecs did make use of logograms and codices, such as the aforementioned Florentine Codex and the Codex Mendoza, to chronicle their history and oral traditions.