Titled The Book of Life: The Spiritual and Physical Constitution of Man, Dr Alesha Sivartha’s enigmatic 1898 work expounds his unique blend of blend of science, sociology, mysticism and religion, a spiritual teaching which apparently attracted the attention of Mark Twain among others. Sivartha was clearly a man bursting at the seams with an abundance of complex and esoteric ideas, and while in written form this might translate into somewhat dense and bamboozling prose, visually it gave birth to a series of superbly intricate and striking diagrams.

Obsessed with the magical properties of the number 12, Sivartha, in each of his wonderful “brain maps”, breaks down the grey matter into twelve different sections in The Book of Life, as well as turning his gaze to other parts of the body such as hands and the nervous system as a whole.