An investment primer any simpler would have to be written in baby talk. The book's interest is confined to those who know absolutely nothing about securities, a part of the how-to market the author appreciates; his own investment education dates only from 1975 when he became a customers' man at a major brokerage house. In addition to providing basic information on such familiar subjects as stocks, bonds, tax-exempt municipals, mutual funds, and options, Tuccille covers less well-traveled ground. Included, for example, are first-rate rundowns on money-market instruments--bankers' acceptances, certificates of deposit, commercial paper, and Treasury bills. Also discussed are high-yield offerings from federal agencies like the Government National Mortgage Association (Ginnie Mae), which issues mortgage-backed obligations. The author carefully reviews the mechanics of all investment vehicles, describing minimum purchase requirements, frequency of interest payments, tax considerations, and other fundamentals. Less useful perhaps is the brief how-to-invest section, which attempts to dealing summary fashion with complex topics including the establishment of investment goals, trusts, and financial planning. But a lengthy lexicon that defines several hundred investment words and phrases is valuable as a ready reference for professionals and amateurs alike. In this introductory text for investors who need more information than insight, Tuccille brings Sesame Street to Wall Street.