Several of John Walton’s titles are on sale on Kindle right now, including his new OT theology. Walton is a good scholar who reads the OT from an ANE perspective as an Evangelical. Other Evangelicals may not always agree with his views, but he’s done really good work and it’s always worth considering seriously.
The Essential Bible Companion: Key Insights for Reading God’s Word (Essential Bible Companion Series) (2009), $5.99
Covenant: God’s Purpose, God’s Plan (2010), $6.99
How to Read Job (2015, Walton and Longman), $4.99
The IVP Bible Background Commentary: Old Testament (2012, Walton & Matthew), $13.99