Visual culture is one of the most difficult subjects that I have taken in four years of college. Sturken and Cartwright attempt to combine the study of art, philosophy, and sociology into a single book. Still, I feel that Practices of Looking is overall well written and does a good job at simplifying the writings and ideas of some of the centuries most noteworthy theorists. Each chapter and subject is clearly laid out and described, while examples and images are effectively and abundantly used. Although I felt that the book is a good introduction for those who have no prior background with the subject, I found there to be several problems.
One problem was that Sturken and Cartwright occasionally either contradicts themselves, or poorly phrases their ideas. For example, on pages 160 and 161, they state that "As distance transmission was facilitated through cables ... long distance broadcasting networks became a reality." However, they later say that "the emergence of cable in the USA reintroduced the narrowcast model." In addition, they state that Black Entertainment Television (received throughout the USA), and Telemundo (more globally received), are two examples of narrowcast television, even though the glossary defines narrowcast media as having "a limited range through which to reach audiences". I would hardly consider a globally received television network to have "limited range."
Another problem that I found was that there are no in text citations (aside from when a source is directly quoted). This would have been very useful in several instances, especially when I was unsure of the validity or accuracy of the information, or simply wished to further examine the subject. For example, on page 163, they state that "in Germany television was at first more frequently viewed collectively in public spaces. Television emerged during the era of Nazism as a nationalized industry that was used to forge a strong collective ideology. As such, it was a tool of mass persuasion". However, to the best of my knowledge (I may be wrong here...), television was not used in Germany until after World War II, and was only occasionally used (mostly during experiments with the new technology) throughout the world prior to and during the war.
Still, I found Sturken and Cartwright's book to be a rather good overview and introduction to visual culture and worth reading if you are interested in the subject, but do not know where to begin.