[SIGCIS-Members] another book by Knuth which is not another volume of TAOCP

See my review at <http://www.tug.org/books/reviews/tb103reviews-knuth9-walden.html>http://www.tug.org/books/reviews/tb103reviews-knuth9-walden.html It will be published in the upcoming issue of the TeX User Group's journal. As the review says, I think this will be a useful volume for computing historians whose research brings them toward Knuth's life and publications.