Petrarch wrote Italian sonnets, and Thomas Wyatt took the form to England. Then came Shakespeare.  This video reviews the difference between Petrarchan sonnets and Shakespearean sonnets.  Then offers an analysis of four Shakespearean sonnets,  specifically:  Sonnet 29 — “When in disgrace with fortune and men’s eyes”; Sonnet 73 — “That time of year thou mayst in me behold”; Sonnet 116 — “Let me not to the marriage of true minds”; and Sonnet 130 — “My mistress’ eyes are nothing like the sun.”