Angus & Robertson

Angus & Robertson (A&R) is a major Australian bookseller, publisher and printer. As book publishers, A&R has contributed substantially to the promotion and development of Australian literature. The brand currently exists as an online shop operated by Booktopia Direct Pty Ltd. The Angus & Robertson imprint is still used by HarperCollins, which has published books under the imprint since 1989.

From the Wikipedia article “Angus & Robertson”, licensed under CC BY-SA 4.0.

An imprint is a brand inside a larger publishing house, often with its own editors and list. Imprints of large groups usually acquire through literary agents; read recent titles to see whether your book fits the list, then target agents who sell to it.