The document defines a mentor as a wise and trusted counselor or teacher, citing the Greek mythological figure Mentor. In Homer's Odyssey, the goddess Athena disguises herself as Mentor to guide and train Telemachus, the son of Odysseus, during his father's absence. The root of the word "mentor" comes from the Indo-European word meaning "to think." Effective mentoring involves an experienced person providing guidance to help a less experienced individual learn and develop skills over time.