Andreas has written 12 books about SEO and digital marketing. His books have been published in USA by McGraw-Hill and in China by Tsinghua University.
He has been an SEO consultant for Stanford MBA school, manages Google Adwords for MIT and Harvard, and worked at organisations like Cisco, SUN, SGI, and Acxiom in Silicon Valley.
Andreas has co-founded two digital marketing agencies. The first was acquired and the second got investor funding and grew to 175 employees. Besides all this, Andreas is on the advisory board of nine Silicon Valley startups.
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