Competition: Dezeen has teamed up with Merrell Publishers to give away five copies of a book that profiles Britain's emerging architectural practices, including Assemble and Invisible Studio (+ slideshow).

Congratulations to the winners! Heloïse D'hont from Belgium, Weronika Lewicka from Poland, Angus Hardwick from Denmark, Matthew Miller from the USA and Jonathan Daughtry from the UK.

Nearly 100 architectural practices feature in New Architects 3, which was produced by Merrell Publishers in association with The Architecture Foundation, which launched the series in 1998.

The book is a guide to the top practices established in Britain since 2005, chosen by a jury of architectural professionals.

Architect Norman Foster and The Architecture Foundation director Ellis Woodman introduce the guide with an overview of the contemporary British architectural scene.

Foster describes the series as having "an excellent tradition of spotting talent", while Woodman contextualises the creativity of new practices as a response to the economic challenges of 2008.

Evidence of this can be seen in the diverse projects of the selected studios, including product design, play-areas, theatre sets and temporary pavilions.

Among the firms and projects featured in the book is Turner Prize-winning studio Assemble, and its collaborative workplace building for artists and designers in east London.

Piers Taylor's firm Invisible Studio, which built a workshop for itself using reclaimed materials and timber, is also included.

Recent projects by the practices are illustrated in the book, such as House No.7 by Denizen Works, The Tote Restaurant by Serie Architects and PriceGore's House for a Painter.

As well as celebrating contemporary architecture, New Architects 3 can be used as a reference for clients, advisers and urban planners, offering practical information on how to get the most out of the client/architect relationship.

The Architecture Foundation is an independent, nonprofit agency that promotes architecture and urbanism. Since its creation in 1991 as the UK's first independent architecture centre, its activities include organising design initiatives, events, exhibitions and education programmes throughout Britain and internationally.

This competition is now closed. Five winners will be selected at random and notified by email, and their names will be published at the top of this page. Dezeen competitions are international and entries are accepted from readers in any country.