Barley, one of the biggest movers and shakers in the UK design industry, began his career with architectural publisher Wordsearch.
He went on to set up his own company, August Publications, and has since gone on to publish a series of books, including the first on The Lighthouse, one on Benson + Forsyth's Museum of Scotland, and most recently, the catalogue for the 2006 London Biennale.
Barley has twice been on the on the advisory group for the UK-wide Architecture Week, and currently works as editor of The List, Scotland's bi-weekly 'what's on' magazine, which led to him being named editor of the year at the 2005 Scottish PPA awards.
On announcing his new position, Barley said he was looking forward to building on the success The Lighthouse has enjoyed since it opened seven years ago.
He said: 'At a time when Scotland is recognising the huge importance of creativity for its economic future, The Lighthouse is in a unique position to champion the work of designers and architects.
'I intend to build on the fantastic work done by Stuart McDonald in setting up The Lighthouse, and to campaign vigorously to bring designers and architects together with the public, and with Scotland's business community.'