2008 TESA Summer Work Conference info available online. Go to the Conference Page. TESA is an affiliate of: National Association of Educational Office Professionals (Allied with American Association of School Administrators) Texas Association of School Administrators (Department Affiliate) TESA • P.O. Box 1565 • Austin, TX  78767 Phone:  (512) 477-0724 • Fax:  (512) 477-1848 • Contact Us