right of women to complete self-fulfillment. From 1790 to 1800, William Blake lived in North Lambeth, London, at 13 Hercules Buildings, Hercules Road. The property was demolished in 1918, but the site is now marked with a plaque. A series of 70 mosaics commemorates Blake in the nearby railway tunnels of Waterloo Station. The mosaics largely reproduce illustrations from Blake's illuminated books, The Songs of Innocence and of Experience, The Marriage of Heaven and Hell, and the prophetic books. Relief etching In 1788, aged 31, Blake experimented with relief etching, a method he used to produce most of his books, paintings, pamphlets and poems. The process is also referred to as illuminated printing, and the finished products as illuminated books or prints. Illuminated printing involved writing the text of the poems on copper plates with pens and brushes, using an acid-resistant medium. Illustrations could appear alongside words in the manner of earlier illuminated manuscripts. He then etched the plates in acid to dissolve the untreated copper and leave the design standing in relief (hence the name). This is a reversal of the usual method of etching, where the lines of the design are exposed to the acid, and the plate printed by the intaglio method. Relief etching (which Blake referred to as "stereotype" in The Ghost of Abel) was intended as a means for producing his illuminated books more quickly than via intaglio. Stereotype, a process invented in 1725, consisted of making a metal cast from a wood engraving, but Blake's innovation was, as described above, very different. The pages printed from these plates were hand-coloured in watercolours and stitched together to form a volume. Blake used illuminated printing for most of his well-known works, including Songs of Innocence and of Experience, The Book of Thel, The Marriage of Heaven and Hell and Jerusalem. Engravings Although Blake has become better known for his relief etching, his commercial work largely consisted of intaglio engraving, the standard process of engraving in the 18th century in which the artist incised an image into the copper plate, a complex and laborious process, with plates taking months or years to complete, but as Blake's contemporary, John Boydell, realised, such engraving offered a "missing link with commerce", enabling artists to connect with a mass audience and became an immensely important activity by the end of the 18th century. Europe Supported by Africa and America is an