John Coupe is a practising structural engineer who has designed buildings ranging in size from domestic extensions to multi-storey residential and commercial developments using steel, concrete, masonry and timber. John's website is www.secrets-of-shed-building.com.
Alex Johnson is a journalist, blogger and the author of A Book of Book Lists, Improbable Libraries, Bookshelf, and Shedworking: The Alternative Workplace Revolution. He runs the web sites Shedworking at www.shedworking.co.uk and Bookshelf at www.onthebookshelf.co.uk. Alex lives in St Albans, London with his wife, three children, and plenty of books from all over the world.