The authors of this latest exercise in self-aggrandizement come on spouting buzzwords of warning to fellow baby-boomers--then go out dispensing conventional wisdom keyed-up to the times. Leading off is a brief but scarifying economic survey to the effect that young professionals are in stiff competition with other age groups as well as among themselves. Next: a clutch of flashily packaged ""principles"" purporting to ensure prosperity in the overcrowded new world. One is mobility, a.k.a, job-hopping. Another is entrepreneurial synergy--e.g., teaming up with talented and/or well-heeled associates in sideline ventures. Pleasure figures too--""Life-style goals run deeper than wills, financial planning, life insurance, or stock-market strategies""; the idea, it turns out, is to acquire a fine piano or land on which to build a dream house as an inflation hedge. Not that such conventional assets as securities or tax shelters are to be ignored: the second half of the book is devoted to an inconclusive review of investment possibilities and a tax briefing that's been overtaken by events. (Among the few commitments on which the authors take a stand, they favor mutual and money-market funds, term insurance, and houses.) A more authoritative, less strident guide for young careerists is Gordon Williams' Financial Survival in the Age of the New Money (p. 1079).