Samuel Taylor Coleridge 
Biographia Literaria 

Biographia Literaria or Biographical Sketches of My Literary Life and Opinions, is an autobiography in discourse by Samuel Taylor Coleridge. The work was originally intended as a mere preface to a collected volume of his poems, explaining and justifying his own style and practice in poetry. The work grew to a literary autobiography, including, together with many facts concerning his education and studies and his early literary adventures, an extended criticism of William Wordsworth’s theory of poetry.