sentences:  His early notebooks and sketchbooks are full of visually sophisticated and technically accomplished drawings of maps, landscapes and buildings, remarkable for a boy of his age.He was profoundly affected by Samuel Rogers's poem, "Italy" (1830), a copy of which was given to him as a 13th birthday present.In particular, he admired deeply the accompanying illustrations by J. M. W. Turner, and much of Ruskin's art in the 1830s was in imitation of Turner, and Samuel Prout, whose "Sketches Made in Flanders and Germany" (1833) he also admired.