John K. Ousterhout is a professor of computer science at Stanford University and chairman of Electric Cloud, Inc. Ousterhout created Tcl and is well-known for his work in distributed operating systems, high-performance file systems, and user interfaces. A member of the National Academy of Engineering and recipient of the ACM Software System Award (for Tcl), he has served as professor of computer science at UC Berkeley, distinguished engineer at Sun Microsystems, and CEO of Scriptics, which he founded.
Ken Jones, president of Avia Training and Consulting, has spent thousands of hours teaching Tcl to IT professionals. He has more than twenty years of experience training developers through live courses and documentation. As lead instructor at Scriptics, he worked closely with John K. Ousterhout and many other key Tcl developers. Jones coauthored Practical Programming in Tcl and Tk, Fourth Edition (Prentice Hall, 2003).