Paper × 841 mm). A1 is half the size of a sheet of A0 (i.e., 594 mm × 841 mm), such that two sheets of A1 placed side by side are equal to one sheet of A0. A2 is half the size of a sheet of A1, and so forth. Common sizes used in the office and the home are A4 and A3 (A3 is the size of two A4 sheets). The density of paper ranges from for tissue paper to for some speciality paper. Printing paper is about . Paper may be classified into seven categories: Some paper types include:
How the Other Half Dies How the Other Half Dies How the Other Half Dies: The Real Reasons for World Hunger is a book by Franco-American activist Susan George, a member of the Transnational Institute. It was originally published in 1976, not long after the World Food Conference, and has been reprinted several times since. In the book, George examines and disputes two popular ideas: first, that there is not enough food, and second, that the world is over-populated. She argues that the planet could easily feed its present population and many more. She also insists that the problem is not climate change and that