• 'Song of Innocence and Song of Experience' are written by - William Blake- ইংরেজি সাহিত্যে এই দুইটি সাহিত্য রচনাকে masterpieces of English lyric poetry হিসেবে অভিহিত করা হয়। - Songs of Innocence, ১৭৮৯ সালে প্রকাশিত হয় - এবং এটিকে Blake এর প্রথম first great demonstration of “illuminated printing বলা হয় - his unique technique of publishing both text and hand-coloured illustration together.- Blake published Songs of Experience and combined it with his previous lyrics to form Songs of Innocence and of Experience Shewing the Two Contrary States of the Human Soul.- The poems of Songs of Experience center on threatened, unprotected souls in despair.• Willaim Blake one of the greatest Romantic poets who is considered to be one of the greatest visionaries of the early Romantic era.- He was both a painter and Poet.• Best works:- The Marriage of Hell and Heaven,- Songs of Innocence,- Songs of Experience, etc.- The Book of Thel- The French RevolutionSource: An ABC of English Literature by Dr M Mofizar Rahman and Britannica.