Pietro di Salerno was an Italian physician and medical writer active during the late 12th century. He is best known for his contributions to the field of medicine, particularly through his work on the Articella, a compilation of medical texts that became a standard reference in medieval universities. His writings helped to bridge ancient medical knowledge with contemporary practices of his time. Di Salerno's influence extended beyond his own works, as he played a significant role in the transmission of Galenic and Hippocratic ideas to later generations. His teachings emphasized the importance of observation and experience in medical practice, laying the groundwork for future advancements in the field.