The Organization for Economic Co-operation and Development (OECD) report consists of a collection of essays concerned with the relationship between earnings and education. One of its purposes was to collect the diverse sources of earnings classified by education in OECD countries. but the more important purpose was methodological. Thus, the major part of the volume is devoted to a review of four aspects of the relationship between earnings differentials and level of schooling: (1) the role of student ability, (2) the role of school quality in determining earnings, (3) the extent of monopoly elements in earnings by level of education, and (4) fringe benefits by educational level. In particular the OECD report discusses the issues and possible analyses ralated to education and earnings, analyzes the above-mentioned four special topics associated with the interpretation of earnings by educational level, documents the sources and presents in summary form whatever data are available on earnings by education in OECD countries, and points at some areas of future research. An appendix gives more detailed tabulations of earnings by education and documents the sources of such data in a number of countries. The document concludes with a four-page bibliography. (Author/BP)