Final answer:
Pseudo-Apollodorus's work is known as the Bibliotheca; a comprehensive collection that plays a key role in the preservation of Greek mythological narratives.
Step-by-step explanation:
Pseudo-Apollodorus's work is a massive compilation of mythology called Bibliotheca or Library. This work is an important source for Greek mythology and was very influential in preserving the myths for future generations. By its nature as a collection, the Bibliotheca summarizes and organizes a wealth of Greek myths and genealogies from various sources, some of which date back to Hesiod's Theogony and the Homeric epics. Knowledge of such compendiums would not only have been vital for education in ancient times but also provides modern scholars with insights into the mythological and religious beliefs of the ancient Greeks.