Family Bible Publications produces the Looking Back to the Bible Study Series. This series includes study books designed for adult Bible classes. The first study in this series is the New Testament Church, and is divided into two lesson books. This book is written by David Dalton (see bio on Staff page).
The New Testament Church: Book One can be purchased from Family Bible Publications for $4.75 by calling 901-235-3327. A Kindle edition can be purchased from the Amazon website.