We have just received word of an important new book: *Programming Instructions for the HAL 9000 Computer*, revised edition. The new edition of the HAL 9000 handbook has been updated to incorporate improvements suggested by this versatile machine’s surviving users. In particular, the manufacturers suggest that priority be given to the retrofitting of small explosive charges at strategic points in the central memory unit. Authorized by Arthur C Clarke Chief Semantic Controls Engineer Colombo SRI LANKA (Found in the December 1978 issue of BYTE Magazine, downloaded from archive.org.)