The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters .. : Euclid : Free Download, Borrow, and Streaming : Internet Archive

Oliver Byrne (1810–1890) was a civil engineer and prolific author of works on subjects including mathematics, geometry, and engineering. His most well known book was this version of ‘Euclid’s Elements’, published by Pickering in 1847, which used coloured graphic explanations of each geometric principle. The book has become the subject of renewed interest in recent years for its innovative graphic conception and its style which prefigures the modernist experiments of the Bauhaus.