Published in thirty-nine volumes between 1903 and 1911, this remains the definitive collection of Ruskin's writings. Upon concluding this task, Cook moved on to writing other works, producing biographies of Florence Nightingale and John Delane as well as handbooks to the National Gallery and the Tate Gallery, and to the Greek and Roman antiquities in the British Museum.
This comprehensive collection of Ruskin's writings was published over thirty-nine volumes between 1903 and 1911. Following this task, Cook went on to write other notable works, including biographies of Florence Nightingale and John Delane, as well as guides for the National Gallery and the Tate Gallery, and handbooks on Greek and Roman antiquities at the British Museum.