Stephen Todd Walker's clients include Forbes 400 members and some of the most affluent families in the world. During his 20-plus years in finance, he was one of the youngest directors in Alex. Brown history. He served as a Senior Vice President, Corporate Client Group Director and was a member of Morgan Stanley's Chairman's group. In 2009 and 2010, Barron's listed Walker among the Top 1,000 Advisors in the United States. The author lives in Bryn Mawr, Pennsylvania.

Please visit the author at Stephentoddwalker.com

Colin Barnes is Professor of Disability Studies at the Centre for Disability Studies, Department of Sociology, University of Leeds; Mike Oliver is Professor of Disability Studies in the School of Social Sciences, University of Greenwich and Len Barton is Professor of Inclusive Education at the Institute of Education, University of London.