Presenting a wealth of introductory material, Interpreting the Epistle to the Hebrews serves as an essential prolegomenon for further study of this epistle and enables readers to make informed judgments when using commentaries.
I found this to be a helpful primer for a serious study of Hebrews. While he doesn't answer every question, the author does a good job of laying out the major questions surrounding this book as well as providing support for his conclusions.
Another outstanding volume in this series – one of the best & most extensive of this series – serves as a mini-commentary, biblical theology on Hebrews.