The International Young Publisher of the Year is a British Council award programme, which has been developed with the support of the London Book Fair.
The finalists are also asked to select works from their country, which they then present at a book pitch to an expert jury and the general public.
Maria used her award to publish the teenage novel Operation Red Jericho by the British author Joshua Mowll in Polish.
For the first time, the award went to a book retailer, Nashwan Al-Maghafi, the Managing Director of Yemen Bookshop, a business that he established in 1995 when he was 19.
The award was presented by Cherie Booth QC, the wife of the former British Prime Minister and a longstanding supporter of the programme.