A far-better-than-average treatise on the theory and practice of hogtieing audiences large and small by way of podium persuasion. Mr. Boettinger, a veteran of university and corporation meetings, avoids the boldface directional ladders of the more popular manuals and instead pursues a leisurely, modestly anecdotal course. He immediately takes cognizance of the importance of audience interaction: ""Presentation of ideas is conversation carried on at high voltage,"" and investigates the varieties of heard and unheard ""dialogue."" There are discussions of common and individual responses and needs in differently composed and motivated audiences; how to move a group toward action; the use of questions and how to avoid being unravelled on the spot by a gleeful interrogator. Mr. Boettinger urges the honest and skillfully diplomatic but firm approach rather than ""skeet shoot"" arm-twisting. If the reader is still too timid to take the ""trip"" after reading this book, the author points out, he still may become a useful audience critic. The thinking man's guide in these days of mass meetings and planning parlays.