Steven Poole, journalist, writer, and composer for television and short films, has decided to give away his first book, Trigger Happy, for free. It discusses the aesthetics of videogames - what they share with cinema, the history of painting, or literature; and what makes them different, in terms of form, psychology and semiotics. It was first published in 2000; the version given away is a revised edition with the afterword written in 2001. The book is offered as a PDF file under a CC license, for a limited time only, with no digital rights management whatsoever. Grab it here.