Affinity Photo 2: Solid Foundations
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The Craft of Photoshop : Solid Foundations
The Craft of Photoshop : Solid Foundations, available at $59.99
Affinity Photo (version 1) : Solid Foundations
Affinity Photo (version 1) : Solid Foundations, available at $109.99
Enhancing Photos for Complete Beginners
Enhancing Photos for Complete Beginners, available at Free