The Epistola de litteris colendis is a well-known letter addressed by Emperor Charlemagne to Abbot Baugulf of Fulda, probably written sometime in the late 780s to 800s (decade), although the exact date is still debatable. The letter is a very important witness to the Carolingian educational reforms during the Carolingian Renaissance from the late 8th century to the 9th century. The letter shows Emperor Charlemagne's interest in promoting learning and education within his empire.
The oldest existing copy of this letter comes from the 8th century. Another version dates back to the 11th century. The older of the two surviving manuscripts are located at Wuerzburg and offer the original text addressed to Abbot Baugulf. The more recent manuscript (Metz, bibl mun forth. o nr 226,.. SAEC XI, burned in 1945), whose text is preserved by older editions, is the revised version offered for Angilram, who was charged with further dissemination.