A cunning and successful literary forger, Iolo Morganwg has been a controversial figure within Welsh literary tradition and history ever since his death in 1826. During his lifetime, however, he was largely a figure on the margins of Welsh literary society, who found the task of getting his work into the coveted sphere of print culture a gargantuan one. This book examines how he dealt with the frustrations of his marginality – writing sardonic remarks in the margins of books published by his contemporaries, and submerging himself in a mound of scrap paper on which he wrote numerous drafts of poems and conducted original work on the Welsh language.