A clear, concise, fair-minded and well-written introduction to a vast and complex subject. Copson deftly describes the history of secularism - including diverse traditions such as India as well as the more familiar (to Western readers) narrative of Rousseau, Locke, the French revolution and the founding fathers. He then gives a cogent summary of the tangled philosophical and political issues and arguments around secularism today, neatly establishing exactly why it remains the best hope for peaceful co-existence.
He finishes with a warning, titled 'Secularism under threat as never before'.
An informative and - despite the sometimes dry subject matter - entertaining read, recommended for anyone with an interest in how politics and religion interact (which, given what a crucial issue this is, really ought to be everyone).