Various recommendations that have come to me via email.
Dear BLOGGER checker, I am a REAL PERSON, see one of the drafts where I have given you my phone number to reach me.
Slashdot | Effective Tcl/Tk Programming: "Whether you're into sockets with Tcl or just want to use that text widget more effectively, you will find this book useful. I'm sure it will be coming off the shelf for reference much in the future."