There's a lot out there, and some of it (even the popular stuff) isn't good for you. Here's a list of books you can trust - healthy food for your soul!
3 in 1: A Picture of God, written by Joanne Marxhausen, pictures by Ben Marxhausen and Ed Koehler (St. Louis: Concordia Publishing House)
The Jesus Storybook Bible: Every Story Whispers His Name, written by Sally Lloyd-Jones, illustrated by Jago (ZonderKidz, 2007).
The Ology: Ancient Truths, Ever New, written by Marty Machowski, illustrated by Andy McGuire (New Growth Press, 2015).
The Biggest Story: How the Snake Crusher Brings Us Back to the Garden, written by Kevin DeYoung, illustrated by Don Clark (Crossway, 2015). Get the book and the movie!
Devoted to God: Blueprints for Sanctification, by Sinclair B. Ferguson (The Banner of Truth Trust, 2016)
Prayer: Experiencing Awe and Intimacy with God, by Timothy Keller (Dutton, 2014)
Communion with God: Fellowship with Father, Son, and Holy Spirit, by John Owen (Christian Focus Publications, 2007). First published in 1657, this edition modernizes the English and adapts Owen's format and writing to make it more "user friendly" for today's reader.
Adorned: Living Out the Beauty of the Gospel Together, by Nancy DeMoss Wolgemuth (Moody, 2017)
Who Shall Ascend the Mountain of the Lord?, by L. Michael Morales (Downers Grove, IL: InterVarsity, 2015).
The Story of Reality: How the World Began, How It Ends, and Everything Important that Happens in Between, by Gregory Koukl (Zondervan, 2017)
Gospel Fluency: Speaking the Truths of Jesus into the Everyday Stuff of Life, by Jeff Vanderstelt (Crossway, 2017)
From where do you buy your books? Good stewardship means doing what you can to insure the money you use to buy resources isn't taken and used for non-Kingdom purposes. Consider book sellers who are both Christian and discerning in their inventory, like Westminster Bookstore or Grace & Truth Books.
Be discerning, saints!