The Sestude is perhaps a 'literary' rather than a 'poetic' form since it can be a prose piece, but it seemed a shame not to include it. The stipulated number of words is 62 and you may not be particularly surprised to learn that it was created by the ‘26’ collective. I came across it here, where there is a link to Sara Sheridan's blog post about the project.
The Heart is Improvisational
2 weeks ago