Explore the Book, by J. Sidlow Baxter and What the Bible Is All About, by Henrietta Mears are two great and timeless overviews of the Bible. Baxter’s is massive in scope and Mear’s is much simpler in scope - but both are excellent.
The Life of Christ in Stereo, by Johnston M. Cheney is an excellent complication of the four gospels into one continuous narrative, giving an excellent chronological look.
One Perfect Life, by John MacArthur, is a more recent compilation of the four gospels into one, with annotations.
The Daily Study Bible Series, by William Barclay, is an excellent affordable, multi-volume, readable and practical commentary on the entire New Testament. It is broken up into short daily studies - originally broadcast on the radio.
Introductory Lectures In Systematic Theology, by Henry Clarence Thiessen, is my favorite one volume resource on theology.
The “Be” series by Warren Wiersbe features multiple paperback practical commentary on most of the Biblical books, one book for each book.
For instance, Be Wise is his commentary on 1 Corinthians, and Be Comforted is his commentary on Isaiah.