Lean advertising for startups

My friend (and STAQ advisor) Brent Halliburton is writing a book called Lean Advertising for Startups, and he's running a Kickstarter campaign to support it. I've known Brent for a long time and he is an expert on advertising, so this is going to be a really useful book. It fills a hole in startup literature opened by the promise of books like The Lean Startup, which encourages businesses to experiment and learn what works while avoiding waste. I don't think anyone since then has written extensively about what how to actually do this in practice when you don't have a huge budget, using currently-available technology. That's where Brent comes in! I backed his project and hope everyone else does too!