"The Water, Sanitation and Health electronic library, 5th edition, includes more than 220 documents of new and current publications. The documents provide information on water supply and sanitation, recreational/bathing waters, achieving the Millennium Development Goals on water, sanitation and hygiene, drinking-water quality, water resources management and health-care waste. Included are full text books and guidelines, facts sheets, facts and figures, posters, advocacy materials and other information products"--WHO website.