Sometimes I come across advice to juniors written by other people and get sooooo jealous, wishing I was as brilliant to write it myself.
This gem on the Ad Buzz site, was written by Mat Zucker, Chief Creative Officer of OgilvyOne Worldwide. It's called "What I Wish Someone Had Told Me" and is capital B-Brilliant.
I have been hounding students about the art of the craft and Mat echos this in his point about typography. I urge students to be savvy and knowledgeable about current events and pop culture and Mat too prescribes this when he says know your content.
Have a read, it is some of the best advice out there for juniors.