Competition: Dezeen has teamed up with publisher Wiley to give away five copies of a book about the construction of the Al Bahr Towers in Abu Dhabi.

Congratulations to the winners! Alex Atwood from the USA, Richard Fennell from the UK, Simon Verstraete from Sweden, Anselm T. Grahl from the Netherlands and Eric Rzepka from France all won a copy of Al Bahr Towers.

Titled Al Bahr Towers: The Abu Dhabi Investment Council Headquarters, the new book gives an insight into the design and completion of the two 25-storey towers in the UAE by architecture firm Aedas for the Abu Dhabi Investment Council.

Constructed from glass and steel, the elliptical towers are clad with a latticed mashrabiya shading system common in Islamic architecture.

The publication starts with an illustrated introduction by The Financial Times architecture correspondent Edwin Heathcote, who provides the background of the building, and includes 300 images by photographer Christian Richters.

The history and philosophy of Islamic architecture is also explored by Islamic Studies expert Professor Eric Ormsby. Visit Wiley's website for more information and to order a copy.

This competition is now closed. You need to subscribe to our newsletter to have a chance of winning. Sign up here.

Five winners will be selected at random and notified by email. Winners' names will be published in a future edition of our Dezeen Mail newsletter and at the top of this page. Dezeen competitions are international and entries are accepted from readers in any country.