https://www.penguin.co.uk/company/work-with-us/cover-design-award

“All aspiring designers and illustrators in the UK are encouraged to enter the Penguin Cover Design Award, regardless of higher education status.

We’re looking for UK-based designers and illustrators who haven’t yet had significant experience in a paid creative role – that includes anyone aged 18 or over who is yet to break into the creative industry, students from all subjects and recent graduates.

All entries must be submitted as a PDF via the submission form, which is open for entries until Wednesday, 28 February 2024 at 14.00 (GMT).”