- English, Technical Communications
- Presentation & Public Speaking
- Adult Learning
- Presentation & Slide Design
- Human Resources & Training
Rex Castle is an alumnus of Texas Tech. Rex has over 2 decades of experience in Human Resources and Training and for the last 7 years has worked with Tyler Technologies overseeing their online training and online help and documentation as their Director of Interactive Content. He is also heavily involved assisting their Sales Professionals with their presentation skills, slide and presentation design and messaging. He is a national speaker and expert in presentation (adult learning) and author of 3 books.