While I have not read any of them yet (I just downloaded a few), they pretend to be “highly readable pamphlets introducing the books of Scripture. Each pamphlet presents a concise (tract-size), stimulating introduction to a biblical book from either the Old or New Testaments to begin adventuring through the actual Scriptures.”
The following paragraphs are also from their website:
Feel free to print out these PDF downloads and use them for group study, for personal Bible study, or as a resource for sermons.
Created in partnership with Forward Movement Publications, Bible Briefs is a long term project aimed at producing introductions to all 66 books of the Bible. As new research and insight into the Scriptures emerges, we will produce new, up-to-date pamphlets to be available alongside older, classic ones. As we press forward with excitement, we encourage your support by using and spreading the word about these materials. Your comments and suggestions are welcome.
Let me know if you find any of them useful!