Solid Ground Christian Books has a plethora of classical and contemporary doctrinal and theological books from a Baptist and Reformed perspective. If you go to this page you can order six Reformed Baptist booklets for just $2.50. There is a good variety in this bundle:
1. Covenant Theology: A Reformed Baptist Overview
2. Baptism & Covenant Theology
3. A Critical Evaluation of Infant Baptism
4. The Implications of the Lord’s Supper
5. The Minister & His Study: The Place of Reading In Pastoral Ministry
6. Missionaries Should Be “Immersed” In Church
There are a number of other booklets you can purchase individually, ranging from $0.15 to $1.50. Many of these booklets provide a great entry-way into further, more in-depth study. Be sure to check out their site and support this faithful ministry by purchasing some books to add to your study.