I have used a number of the Interpretation series for study with older high schoolers and adults. As indicated in their description they contain "ten units on key passages". They are not to be mistaken for a comprehensive Bible Commentary which covers each chapter and verse - this is not their purpose. I love the fact that this material is thought provoking and is intended to provide openings for dialogue - but then I'm an Episcopalian and not keen on being force fed. I particularly like the information in the side-bars that links the scripture to cultural practices of the day, differing Greek translations of a word, further reading, etc. This series contains a down loadable teacher's guide that is also useful.