An Outline of Modern Faith by Valentina D'Efilippo (The artwork is included in 'The Infographic History of the World' by Harper Collins, 2013)
This infographic classifies the adherents of major religions to visualiSe the relative (and changing) sizes of different faiths.
The chosen format takes inspiration from the imagery of a sceptre, and also a hypothetical floor plan for a many-roomed house of worship.
Whilst Hinduism and Judaism are the oldest of the primary religions, Christianity and Islam currently claim the most adherents. Yet, when looking for the fastest-growing classification of faith, it is actually the non-believers – people identifying with Agnosticism & Atheism.