The term ?visual perception? covers a very wide range of psychological functions. This title, originally published in 1970, which provides a broad survey of this vast field of knowledge, would have proved a valuable general account for students taking degree courses in psychology at the time. Professor Vernon examines a large number of experiments carried out over the previous twenty years, their findings, the conclusions drawn from them, and ? equally important ? the still unanswered questions which some of them raised. As the title suggests, Professor Vernon considers that ? while much knowledge of the simpler perceptual processes had been gained in laboratory experiments ? perhaps too little investigation had been undertaken into the more complex processes which normally determine understanding of and response to environment: the processes of identification and classification that depend to a considerable extent on learning, memory, attention, reasoning and language. An extensive bibliography is provided.