A similar question was posted on Quora and elicited a number of different but very interesting responses. It just goes to show that there is still a lot of controversy when it comes to creative briefs in marketing. If you come from the agency side, you are used to a certain format. Big companies and small companies have different needs, and so their briefs are also formatted differently.
From the discussion thread I liked two presentations that were shared, posted below. The first is an interesting research done by Jasmin Cheng (from Twist Image) about creative briefs in the industry, and the second is a presentation by Nick Emmel on how to properly write a creative brief. While they don’t settle the discussion, are good sources for inspiration nonetheless.
And, if you’re interested in looking at some different formats for creative briefs, check out this blog post on creative brief template review.