One of Shakespeare's most popular and accessible plays, Romeo and Juliet tells the story of two star-crossed lovers and the unhappy fate that befell them as a result of a long and bitter feud between their families. The play contains some of Shakespeare's most beautiful and lyrical love poetry and is perhaps the finest celebration of the joys of young love ever written. Shakespeare's use of his poetic dramatic structure, especially effects such as switching between comedy and tragedy to heighten tension, his expansion of minor characters, and his use of sub-plots to embellish the story, has been praised as an early sign of his dramatic skill. The play ascribes different poetic forms to different characters, sometimes changing the form as the character develops.