From the title the reader could suddenly understand that Anne is the subject of the poem.

"Anne Hathaway" is a sonnet spoken in the voice of Anne Hathaway, Shakespeare's wife. This poem is a dramatic monologue.
The lyout makes clear it is arranged into four stanzas made up of three quatrains and a rhyming couplet; this is the typical structure of Shakespeare’s sonets.
The line lengths are quite compact in all the sonnet.
To sum up, the poem creates significance around the bed which can only be truly understood by the couple themselves.
In the opening two lines, Duffy uses a metaphor to express the magic of the bed in which Shakespeare joined with Anne: “it was a spinning world / of forests, castles, torchlight, clifftops, seas”. More metaphors follow in lines three and four as Anne Hathaway recalls their lovemaking (the first quatrain is organized into alternative rhymes).Then follows the personification of his touch, portrayed as "a verb dancing in the centre of a noun". Anne says that she sometimes dreamed that Shakespeare had written her, wishing that she was part of his artistic creation; She metaphorically imagines the bed as “a page beneath his writer’s hands”. The line twelve switches to Anne’s alliterative description of Shakespeare as “My living laughing love”. She tells us in line thirteen how she keeps her memories of him with the metaphor “I hold him in the casket of my widow’s head”. The final line ( a rhyming couplet) compares this act to the way in which Shakespeare held Anne so lovingly in that second-best bed.