Did you ever wonder why your body works the way it does? Or doesn’t? Sometimes it seems like things could have been organized a little more happily. Michael Scherperel’s light-hearted set of 21 essays on possible design problems with the human body, Homo sapiens—obsolescens?, will take you on a journey from apoptosis to trichobezoars, from presbyphagia to telomeres, from head to toe—well, not quite that far, but fairly close—examining some of the quirks of human construction.