After God had made all other creatures, He created man, male and female, with reasonable and immortal souls,endued with knowledge, righteousness, and true holiness, after His own image; having the law of God written in their hearts, and power to fulfil it; and yet under a possibility of transgressing, being left to the liberty of their own will, which was subject unto change. Beside this law written in their hearts, they received a command, not to eat of the tree of the knowledge of good and evil; which while they kept, they were happy in their communion with God, and had dominion over the creatures. - WCF 4.2
Resources
Through the Westminster Confession Chapter 4.2 by Richard Phillips
What Is Mankind? The Image of God by Richard Pratt
Men and Women in the Image of God by John Frame
Man as the image of God by Louis Berkhof
The Original State of Man by A. A. Hodge
Basics of the Reformed Faith: Divine Image Bearers by Kim Riddlebarger
We Are Not Germs: The Case for Human Dignity by R. C. Sproul
The Image of God in Man by Abraham Kuyper
10 Things You Should Know about the Imago Dei by Sam Storms
Imago Dei by Mark E. Ross
The Image of God in Man: A Reformed Reassessment Rev. Angus Stewart
The Imago Dei in Man by Alan Shlemon
Flaws in the Well-Meaning but Misguided ‘Imago Dei’ Campaign Concerning ‘Gays' by Robert A. J. Gagnon
God Has Spoken by Darrell B. Harrison
Evolution and the Image of God by Shane Lems
Multimedia
The Image of God in Man by R. C. Sproul (MP3)
Image of God by Derek Thomas
Of Creation (Ch.4, Sec.2) by Greg Bahnsen
Man in the Image of God by John Murray (MP3)
Episode 4.2: The Image of God by The Jerusalem Chamber (MP3)
On Creation by Doctrine and Devotion (Podcast MP3)
The Image of God by Kyle Borg (MP3)
The Image of God by Broan Borgman
Herman Bavinck on the imago Dei — Nelson D. Kloosterman
Books
Created in God’s Image by Anthony Hoekema
The Christian View of Man by J. Gresham Machen
Man: The Image of God by G.C. Berkouwer
The New Creationism by Paul Garner
Creation and Change: Genesis 1.1-2.4 in the Light of Changing Scientific Paradigms by Douglas Kelly
Bones of Contention: A Creationist Assessment of Human Fossils by Marvin Lubenow
Theistic Evolution: A Scientific, Philosophical, and Theological Critique by Stephen C. Meyer
Biological Information: New Perspectives by Robert J Marks et al
Genesis for Today by Andy McIntosh
The Young Earth by John Morris
Should Christians Embrace Evolution? by Norman Nevin (ed)
Genetic Entropy Mystery of the Genome by John Sanford
Earth’s Catastrophic Past: Geology, Creation, and the Flood by Andrew Snelling
Radioisotopes and the Age of the Earth: Creationist Research by Larry Vardiman (ed)