Shakespeare's sonnets
The primary source of Shakespeare’s sonnets is a quarto published in 1609 titled "Shakespeare’s Sonnets." It contains 154 sonnets, which are followed by the long poem "A Lover's Complaint". Thirteen copies of the quarto have survived in fairly good shape from the 1609 edition, which is the only edition; there were no other printings. There is evidence in a note on the title page of one of the extant copies that the great Elizabethan actor Edward Alleyn bought a copy in June 1609 for one shilling.
William Shakespeare
Published in 1609, the "Sonnets" were the last of Shakespeare's non-dramatic works to be printed. Scholars are not certain when each of the 154 sonnets was composed, but evidence suggests that Shakespeare wrote sonnets throughout his career for a private readership. Even before the two unauthorised sonnets appeared in "The Passionate Pilgrim" in 1599, Francis Meres had referred in 1598 to Shakespeare's "sugred Sonnets among his private friends". Few analysts believe that the published collection follows Shakespeare's intended sequence. He seems to have planned two contrasting series: one about uncontrollable lust for a married woman of dark complexion (the "dark lady"), and one about conflicted love for a fair young man (the "fair youth"). It remains unclear if these figures represent real individuals, or if the authorial "I" who addresses them represents Shakespeare himself, though Wordsworth believed that with the sonnets "Shakespeare unlocked his heart".