So just what is an event description? In a nutshell, it's a piece of copy that tells people the basic information they need to know to decide whether or not they want to attend the event. It should always include the 5 W's (who, what, when, where, and why) and, if necessary, an H for how.So just what is an event description? In a nutshell, it's a piece of copy that tells people the basic information they need to know to decide whether or not they want to attend the event. It should always include the 5 W's (who, what, when, where, and why) and, if necessary, an H for how.So just what is an event description? In a nutshell, it's a piece of copy that tells people the basic information they need to know to decide whether or not they want to attend the event. It should always include the 5 W's (who, what, when, where, and why) and, if necessary, an H for how.