Original sentence: Events feature noteworthy professionals--from artists to authors, musicians and entrepreneurs, politicians and scientists--and enable students to interact with, listen to, and often dine with an invited speaker.President graduated from Whittier is mentioned in many of the college's advertising documents--but that President's name is usually carefully omitted, until recently
Edited sentence: Events feature noteworthy professionals—from artists to authors, musicians and entrepreneurs, politicians and scientists—and enable students to interact with, listen to, and often dine with an invited speaker.President graduated from Whittier is mentioned in many of the college's advertising documents—but that President's name is usually carefully omitted, until recently