Herbert Marshall McLuhan (1911-90), Canadian communications theologist and educator, used the term probe to refer to thought-provoking statements such as "the medium is the message"-an aphorism that summarized his view of how electronic disseminators of information shape the thinking in any branch of knowledge. Small, thick, and beautifully bound, The Book of Probes offers a sampling of his finest sayings, arranged by subject and accompanied by Carson's artwork as backdrops. Selected by McLuhan's son Eric, the probes are culled from his many books, speeches, lectures, and hundreds of short writings. The design of the book is similar to McLuhan's The Medium Is the Message (1967), which was considered unique at the time of its publication and is in fact more accessible and playful than this work. While it may be of value in upper-level classrooms to stimulate discussion or as a condensed introduction to McLuhan's writings, this book will not satisfy those desiring a solid foundation in McLuhan's contributions to communications theory; they would be better served by one of his seminal works, e.g., Understanding Media (1964). Recommended for academic libraries supporting extensive communications programs.-Angela Weiler, SUNY at Morrisville Libs. Copyright 2004 Reed Business Information.