After coming across long poem in a submission request, I was curious about them. How to write a long poem is not an accessible subject. The libraries dont have much about it. What you can about them is what you glean from the actual long poems themselves.
'The Vigilante Poets of Selwyn Academy' has a situation that is ripe for rebellion through a long poem. Each chapter starts with a cantos summing up the events as they unfold at the Academy. The book makes such a difficult concept of long poem, easy to understand.
