For a quick nuts-and-bolts overview of logic, there's no book that does it better

Pared-down, simplified, and tightly focused, "Schaum's Easy Outline of Logic" is perfect for anyone turned off by dense text. Cartoons, sidebars, icons, and other graphic pointers get the material across fast, and concise text focuses on the essence of logic. This is the ideal book for last-minute test preparation.

Broad in scope, this introduction to environmental ethics considers both contemporary issues and the extent of humanity's responsibility for distant future life. John Nolt, a logician and environmental ethicist, interweaves contemporary science, logical analysis, and ethical theory into the story of the expansion of ethics beyond the human species and into the far future. Informed by contemporary environmental science, the book deduces concrete policy recommendations from carefully justified ethical principles and ends with speculations concerning the deepest problems of environmental...