An extension of O'Flynn's previous work, Einstein's Brain floats somewhere between the hug and the thistle. It contains great variety in terms of subject matter, form, style, and mood. There is a typical wit and a penchant for the quirky and the absurd, as well as a willingness to play with language.

A concern with form ranges from the loosely traditional to the free-wheeling. There are also several longer poems exercising a sense of stamina across a broader canvas.

Above all, this book is about observation, about apprehending the oddity of what is right in front of our noses.