Human genetics has blossomed from an obscure branch of biological science and occasional explanation for exceedingly rare disorders to a field all its own that affects everyone. This book introduces the key questions and issues.
Bought this after enjoying some posts on the author's blog on PLoS (http://blogs.plos.org/dnascience/). It mostly worked well as an introduction to the field of genetics for a clueless reader like me, although it went into less detail than I would've liked in some areas (e.g. copying and repair mechanisms, DNA vs. various types of RNA, etc.) and assumed too much existing biology knowledge in others.