RESTON, VA (August 28, 2008) Learning Tree International (NASDAQ NM: LTRE) has extended its .NET Development curriculum with a new 4-day, hands-on course entitled Windows Presentation Foundation (WPF) and Silverlight Introduction. The course features an expert instructor who leads attendees in exercises designed to provide hands-on experience building WPF applications using XAML, Visual Basic (VB) and C# programming languages.

Participants will be taught how to:

• Create compelling, modern user experiences with Windows Presentation Foundation (WPF)
• Leverage Visual Studio to create WPF windows and pages with XAML, C# and VB
• Program stand-alone, browser-based (XBAP), navigation-style and Silverlight applications using XAML
• Produce dynamic content with WPF controls, styles, templates, triggers and animation
• Build rich Internet applications for Windows and Mac computers using Silverlight

Jennifer Urick, Vice President of Product Development for Learning Tree International, said, “Designers and developers attending this course will have the opportunity to learn how to create programs that are dynamic, data-driven and visually appealing using WPF, as well as targeting WPF applications for multiple platforms using Silverlight.”

Windows Presentation Foundation (WPF) and Silverlight Introduction is valuable for any experienced .NET developer who needs to understand and build modern user interfaces, as well as Web and UI designers who need to understand XAML and building WPF user interfaces.

Windows Presentation Foundation (WPF) and Silverlight Introduction augments existing Learning Tree courses, including:

• Programming C# Features: Hands-On
• Programming Visual Basic Extended Features: Hands-On
• Windows Communication Foundation (WCF): Creating .NET 3.5 Web Services
• Windows Workflow Foundation (WF): Hands-On

Learning Tree intends to begin presenting Windows Presentation Foundation (WPF) and Silverlight Introduction in the U.S. and London, England in September 2008, and in Canada in October 2008.

The current schedule includes::

• London, England — September 23-26, 2008
• New York, NY — September 30-October 3, 2008
• Washington, DC (Alexandria, VA) — October 14-17, 2008
• Ottawa, ON — October 21-24, 2008

This schedule is subject to change. For further information and the latest course dates and locations, call 1-800-THE-TREE (1-800-843-8733) or visit www.learningtree.com.

About Learning Tree International

Learning Tree International is a leading global provider of truly effective training to management, business and information technology professionals. Since 1974, over 13,000 public and private organizations have trusted Learning Tree to enhance the professional skills of more than 1.8 million employees. The Company develops, markets and delivers a broad, proprietary library of instructor-led courses focused on project management; leadership and key business skills; web development; operating systems; programming languages; databases; computer networks; IT/IS security; and object-oriented technology. The Company also tests and certifies IT and business professionals, and Learning Tree Courses are recommended for college credit by the American Council on Education and several leading Universities. In addition, Learning Tree is accredited by the International Institute of Business Analysis, the National Association of State Boards of Accountancy National Registry of CPE sponsors, and is a Registered Education Provider of the Project Management Institute (PMI). Courses are presented at Learning Tree Education Centers throughout the world and delivered globally, on-site at client facilities. For more information about Learning Tree products and services, call 1-800-THE-TREE (1-800-843-8733), or visit our Web site at www.learningtree.com.