SAGE Research Methods: The Little Green Books This link opens in a new windowThe Little Green Books, SAGE’s well-known Quantitative Applications in the Social Sciences series, provide short, in-depth, and accessible texts on specific quantitative methods. They provide clear statistical explanations, straightforward empirical examples, and ready-to-use procedures, appropriate for use at all levels of research, across the spectrum of academic disciplines. The Little Green Books address such topics as regression, modeling, data analysis, experimental design, measurement, survey data, and more.