The authors of this comprehensive, research-oriented text have rededicated themselves to exploring "the full range of psychology from cell to society, as free as possible from theoretical bias." The Sixth Edition emphasizes updates and improvements in applied psychology plus more depth and variety of student and instructor materials on the web site. Try This icons appear in the margins to encourage active learning through figure and photo captions. A Margin Glossary defines key terms to reinforce key concepts without interrupting the flow of reading or the text.