After asking the deceptively simple question, how many publishers are there - really? in episode one, our next installment in this mini-series on publishers and platforms asks why the Big Five are such a big deal. 

Join author, linguist, and mathematician-in-the-making Sarah on an exploration of the world through the lens of letters and numbers! 

Links from this episode: 

Project Gutenberg

Free Software Foundation on DRM

Sarah's novel Propaganda Wars