Stephan Spencer is an internationally recognized SEO expert, consultant, and bestselling author. He is the co-author of The Art of SEO (now in its third edition), author of Google Power Search, and co-author of Social eCommerce. Stephan founded Netconcepts in 1995 and grew it into a multi-national SEO agency before selling it in 2010 to Covario. Stephan invented a pay-for-performance SEO platform called GravityStream that was also acquired and is now part of Rio SEO. Stephan’s clients post-acquisition have included Zappos, Sony, and Chanel. Stephan is the creator of Traffic Control, a three-day seminar on SEO, creator of the professional development seminar Passions into Profits, and the host of two popular podcast shows, The Optimized Geek and Marketing Speak.