There are no rules. However, principles may be discerned in actual practice; for example, in the way people actually speak, or in the lines the poets… - Robert Pinsky

Craft is something you learn by studying models.When a student asks, what is a good book about traditional iambic verse, The Collected Poems of Ben Jonson. What is an excellent book about free verse? The Collected Poems of William Carlos Williams. What is a good book about short line in ballad metre? The Collected Poems of Emily Dickinson.

The poet is a particular kind of expert.

I am very interested in memorization which is the process of incorporating a poem, so, I would say the kind of poetry I write is the kind that emphasises the physical qualities of the words.