
Present your trilogy box set cover design with accurate proportions using this C Format paperback mockup, built specifically for 3-book boxed sets.
Designed around true publishing dimensions, this mockup reflects a realistic C Format size of 135 × 216 mm (5.32 x 8.51 in) with a 19 mm (0.75 in) spine width per book, making it ideal for paperbacks in the 280–340 page range (page count varies by paper type).
Powered by Photoshop Actions (ATN), this mockup lets you showcase your box set quickly while maintaining correct scale, alignment, and spine thickness — no exaggerated proportions or generic placeholders.




Key Features
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3-Book Box Set Layout
Display all three paperback volumes together in a cohesive boxed-set presentation. -
True C Format Proportions
135 × 216 mm (5.32 × 8.51 inch) paperback size with realistic spine thickness. -
19 mm (0.75 inch) Spine Width per Book
Suitable for approximately 280–340 pages, depending on paper stock. -
Photoshop Cover Actions Workflow
Fast rendering without manual smart-object adjustments. -
Ideal for Trilogy & Series Designs
Perfect for authors, publishers, and designers presenting multi-volume sets.
Cover Actions Requirement & Compatibility:
** ENGLISH Version Adobe Photoshop CS2, CS3, CS4, CS5, CS6, CC up to Photoshop 2026 pre-installed on Microsoft Windows OR Apple Mac OS.
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What You Get:
- 5 Photoshop Actions ATN: multiple render styles to choose from. Place your artwork to Starter Template- play “Render 3D” Action step to convert your 2D flat design to 3D visual.
- 1 Ready-Made PSD Template: Customize the ready-made template with your text, logo, and colors. Then, simply run the “Render 3D” action to instantly transform it into a 3D mockup.





Best For
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Book cover designers
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Self-publishing authors
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Publishers creating trilogy or series box sets
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Portfolio and client presentations
Show your trilogy as it would appear in the real world — accurate, professional, and print-ready in scale.
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