ANN ARBOR—Twitter CEO and University of Michigan alumnus Richard (Dick) Costolo will deliver the spring commencement address May 4 at Michigan Stadium. He will be awarded an honorary Doctor of Laws degree.

The U-M Board of Regents has approved Costolo and six others as honorary degree recipients for spring commencement exercises. Others to receive degrees are:

• William Brehm, a tireless advocate and supporter of higher education.
• Suzanne Farrell, a world-renowned ballet dancer and educator.
• Rosabeth Kanter, a business leadership expert and former editor of the Harvard Business Review. Kanter will be the keynote speaker at Rackham’s University Graduate Exercises May 3.
• Dale Kildee, longtime member of the U.S. House of Representatives from Michigan. Kildee’s degree will be awarded at the UM-Flint ceremony May 5.
• David McCullough, best-selling author and historian.
• Jeffrey Sachs, economist and advocate for sustainable development. Sachs’ degree will be awarded at the UM-Dearborn ceremony April 28.

For additional background information on each recipient, visit: www.ur.umich.edu/update/archives/130318/honorary