The best way to get started with Tk is to read one of the introductory
books on Tcl and Tk:

    Tcl and the Tk Toolkit, by John Ousterhout,
    Addison-Wesley, 1994, ISBN 0-201-63337-X

    Practical Programming in Tcl and Tk, by Brent Welch,
    Prentice-Hall, 1995, ISBN 0-13-182007-9

    Exploring Expect, by Don Libes,
    O'Reilly and Associates, 1995, ISBN 1-56592-090-2

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