Cornell University's Dr. Kira performs extensive scientific research on how humans use bathroom facilities, and discovers our current designs and practices are WRONG. For example, our sinks are much too low and our toilet seats are too high. Urinals are designed to splash on us(!), and women's restrooms would be much more useful if they still had female-friendly urinals (which they did until the 70's). Dr. Kira provides many new designs that solve the problems we tolerate out of ignorance.
How could so much detailed research and beneficial new designs be overlooked? An Amazing book that is totally relevant today (humans are still the same, and so are toilets). It should NOT be out of print