Jackie Andrade & Jon May 
BIOS Instant Notes in Cognitive Psychology [PDF ebook] 

Instant Notes in Cognitive Psychology is a concise summary of the key theoretical and empirical topics in cognitive psychology, providing easy access to the core information in the field.  The book can serve as a core text, supplemented by readings in the original literature, as a reference guide for students and lecturers alike, or as an ideal revision guide prior to exams.
Instant Notes in Cognitive Psychology is intended primarily for students taking a first course in the subject, but can also be used as an introduction to the field for undergraduates and graduates from other subject areas.