1, 2, & 3 John

Holy Bible: From the Ancient Eastern Text

Mark

George Müller: An example of faith and trust

Acts

Revealing Revelation Workbook: How God's Plans for the Future Can Change Your Life Now

Galatians

Names of God

Luke

The Moody Bible Commentary

James

The Book of Revelation Made Clear: A Down-to-Earth Guide to Understanding the Most Mysterious Book of the Bible

Ephesians

Bite-Size Bible Handbook: A Lot of Info in a Little Book

1 & 2 Thessalonians

All the Names in the Bible

1 & 2 Peter and Jude

NRSV, Catholic Edition Bible: Holy Bible

John

The Bare Bones Bible Handbook: 10 Minutes to Understanding Each Book of the Bible