* Gunpowder Green is part of Laura Childs's Tea Shop Mystery series, in which each installment is named for a particular kind of tea.
* Gunpowder Tea by Margaret Brownley is a historical / Western romance-plus-mystery.
* The Gunpowder Gardens by Jason Goodwin is part travelogue, part tea history.
* Gunpowder by Devina Seth, Harneet Baweja and Nirmal Save is an Indian cookbook.
* Gunpowder Valentine by Paul Perry and Gunpowder Summers by Richard Nester are collections of poetry.