The fourth edition of [Book Practical Programming in Tcl and Tk] ** Attributes ** Author: [Brent Welch] Author: [Jeff Hobbs] Author: [Ken Jones] Publication date: 2003 website: http://www.beedub.com/book ** Obtaining ** [http://www.amazon.com/exec/obidos/tg/detail/-/0130385603/qid=1046168352/sr=8-1/ref=sr_8_1/104-7014893-7300739?v=glance%|%amazon.com]: [http://www.theregister.co.uk/2004/04/27/tcl_tk_programmers_bible/%|%special offer]: seems to still be valid as of 2013-08 ,FWIW ** Description ** About about 20 sample chapters from the four editions are available [http://www.beedub.com/book/%|%online]. They cover topics from the [Beginning Tcl%|%basic Tcl] and [Beginning Tk%|%Tk] introductions, through more advanced topics like [Regular Expression%|%Regular Expressions], [[`[eval]`], [socket%|%socket programming], [thread%|%thread programming], [TclHttpd], and [Starkit%|%starkits]. Among its other virtues, the fourth edition explicitly explains use of [Tk] by such other languages as [Python], [Ruby], [Perl], and so on. ** Discussion ** 2008-10-22 : I wonder if this one is going to be update for 8.5 and [Tile]? <> Book