Billboards and display advertising have become so much a feature of our daily lives, it's easy to ignore them amid the general clutter.
Which is why more attention-grabbing techniques have caught on in the promotion world, all of which can be covered with the term "guerilla advertising." These unconventional stunts aim to be interactive, thought-provoking, or downright weird - whatever it takes to get your attention and make you remember the brand or product it's promoting.
In an exclusive excerpt from Gavin Lucas' new book, "Guerilla Advertising 2" (Laurence King, $40), here are some of the wildest recent marketing campaigns from around the world:
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