Oliver Byrne (; 31 July 1810 – 9 December 1880) was a civil engineer and prolific author of works on subjects including mathematics, geometry, and engineering. He is best known for his 'coloured' book of Euclid's Elements. He was also a large contributor to Spon's Dictionary of Engineering. Family and early life Byrne reports the Vale of Avoca, County Wicklow, Ireland as his birthplace. The son of Lawrence Oliver Byrne and Mary Byrne, he had a younger brother John who co-authored a book with him. Little is known about his childhood. He emerges in Dublin at age 20 with his first publication. By the age of 29, Byrne was noted as the "principal support of an aged mother and sisters in Ireland." Later in England, he was appointed Professor of Mathematics in the College for Civil Engineers at Putney. Marriage His wife Eleanor (née Rugg), was 12 years younger than Oliver and published meteorological articles and books. She is featured on a token struck to commemorate Oliver Byrne's invention of Byneore. Byrne's Euclid His most innovative educational work was a version of the first six books of Euclid's Elements that used coloured graphic explanations of each geometric principle. It was published by William Pickering in 1847. 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 and De Stijl movements. Information design writer Edward Tufte refers to the book in his work on graphic design and McLean in his Victorian book design of 1963. In 2010 Taschen republished the work in a facsimile edition and in 2017 a project was launched to extend the work to the remaining works of Euclid. Byrne described himself as a mathematician, civil engineer, military engineer, and mechanical engineer and indicates on the title pages of one of his books that he was surveyor of Queen Victoria's settlement in the Falkland Islands. Evidence shows Byrne never traveled to the Falkland Islands. The U.S. Library of Congress has a steel-engraved portrait of Oliver Byrne. Engineering and inventions Byrne engaged in numerous railroad projects and invented mechanical devices including the following: The Byrnegraph The Gauger's Patent Calculating Instruments. In 1842, Oliver Byrne and Henry William Hull (BA, CE) made a proposal for a School of Mathematics, Engineering, Classics, and General Literature at Surrey Villa, near Lambeth Palace. Byrne was