The Careers For Tomorrow series has trained its sights on librarianship and has produced the kind of information that can be turned over (without a blush) to the college graduate as well as the high school student. The tone is dignified, the case of librarianship as a profession quietly understated and the broad areas of specialization within the field covered with brevity while crowded with fact. Public, academic, government and special library service are defined with the oles of the librarians examined for relating as well as differentiating factors. The required educational preparation and the discussion of the occupational outlook is sound and avoids the kind of statistical approach to the facts that would quickly date the book. This isn't (mercifully) a hard-sell book about library service. From the beginning, it assumes that the reader is interested and this, as much as any other aspect of the admirable book suggests its use with the career-set rather than the career-groping. The authors are well qualified; he is Director of Libraries at Columbia University, and she is a high school Librarian.