more conventional way, the second more unconventional.
In the world of 'Flatland', 'books are written in a line on a scroll, kind of like morse code'. This drove me to design my unconventional book in a morse code format. Each layer is a chapter, the colours representing the lines on the London Underground, as the main character is called 'Victoria Line'. The CD's in each chapter are audio books - 'dit dit dah...'
