Book excerpt: Basic Critical Theory for Photographers generates discussion, thought and practical assignments around key debates in photography. Ashley la Grange avoids the trap of an elitist and purely academic approach to critical theory, taking a dual theoretical and practical approach when considering the issues. Key critical theory texts (such as Sontag's 'On Photography' and Barthes' 'Camera Lucida') are clarified and shortened. La Grange avoids editorilising, letting the arguments develop as the writers had intended; it is the assignments which call into question each writer's approach and promote debate. This is the ideal book if you want to understand key debates in photography and have a ready-made structure within which to discuss and explore these fascinating issues. It is accessible to students, from high school to university level, but will also be of interest to the general reader and to those photographers whose training and work is concerned with the practical aspects of photography. Also includes invaluable glossary of terms and a substantial index that incorporates the classic texts, helping you to navigate your way through these un-indexed works. The book also contains useful information on photo-mechanical processes, explaining how a photograph can appear very differently, and as a result be interpreted in a range of ways, in a variety of books.