The following books on the OLD TESTAMENT are included in the 9Marks reading list for pastors:
The Authority of the Old Testament, John Bright
History of Israel, John Bright
Introduction to the Old Testament, Dillard and Longman
The Faith of Israel, William Dumbrell
The Goldsworthy Trilogy, Graeme Goldsworthy (see esp. Gospel and Kingdom in this volume)
Whoredom, Ray Ortlund, Jr.