Sheela-na-gig, the squatting, bald woman with comically large ears holding herself open in the most blatant way has long been a figure of mystery throughout Ireland where the stone statues are most prevalent. A multiplicity of theories have left Sheela-na-gigs the subject of curiosity. Researcher Jack Roberts has spent decades documenting and discovering Sheela-na-gigs in all her incarnations. His work places them as a critical element of Gaelic and...