Thriller & Mystery Book Cover Design — covers with a pulse.

Yes. The thriller archetype set is coded from Amazon's Top-100 in psychological thriller, domestic suspense, mystery, and crime — we read those covers, wrote down what they do, and constrain generation to it. Every output follows the genre's visual grammar: type-led, near-monochrome, one tense focal element. You'll never get a soft-serif romance cover by accident.

Yes — pick it in the Subgenre row before you start. We publish one archetype per thriller subgenre: psychological, domestic, action, crime/detective, legal and cozy mystery. Choosing one locks generation to that archetype, so the cover lands in the right lane rather than in a generic "thriller" average. You can also switch archetype on the next screen, or clear it and let the genre defaults decide.

You can change it. Every cover you make lands in a project that keeps all of its versions, so generating a second direction never destroys the first. From there Refine offers three changes: replace the title text, make the title bigger, or describe a visual change in your own words. The first two re-letter a picture you already have and cost 0 AI Generations; only the third makes new artwork, and it costs 1 — charged when a new result actually succeeds, never on a failure, timeout or retry.

A new account gets 3 AI Generations valid 7 days, no card. Those produce watermarked 1080px-wide JPG previews — enough to judge a cover, and licensed for sharing as-is, but not for selling a book. A one-time payment (from $19) unlocks the clean, un-watermarked 1600 × 2560 PNG with full commercial rights. Text and typography changes, front-cover exports and the paperback wrap all use 0 AI Generations either way.

That is what the type-led constraint is for. 79% of the thriller Top-100 let the title outweigh the imagery, and the archetypes are built to the same rule — heavy condensed type, near-monochrome ground, one focal element — because that is the composition that survives Amazon's 90px thumbnail. Check it yourself before you pay: the free preview is a real render, so shrink it on your phone and see whether the title still reads.

Your pen name, yes — the author name is a field and the exact characters are rendered on the cover. There is no separate series field: put the series line in the Subtitle field, which is also rendered verbatim, between the title and the artwork ("A Marlow Bay Thriller · Book 2"). After generation you can also replace the title text from Refine at no cost.

60 seconds from clicking Generate to a finished cover on screen. A successful new visual uses 1 AI Generation; the download is a 1600 × 2560 PNG front cover — exactly Amazon’s recommended Kindle cover size, and the source you take into the paperback wrap step.

The market is $300–$700 for a custom indie thriller cover ($349 ebook-only up to $549 for a full print wrap); boutique/bestseller designers run $700+, premades $50–$350. MakeMyBookCover gives new users 3 free AI Generations valid 7 days, then charges a one-time $19 for 20 or $39 for 60, with full commercial rights included with the paid download.

6 × 9 in is the self-publishing thriller standard (5 × 8 and 5.5 × 8.5 also common). Our ebook export is 1600 × 2560 px, matching Kindle’s recommended size. The paperback is a separate wrap file whose width depends on your final page count — the KDP delivery section above lists what we build, and the spine calculator does the arithmetic.

Lock four things across every book and vary the fifth — typeface, title placement (same vertical zone), accent colour, and composition grid. What changes per book is the single focal element: book 1 a key, book 2 a phone, book 3 a knife. In practice that means starting each book from the same archetype, keeping the same subtitle-line format for the series label, and using the free "describe a visual change" wording only on the focal object. There is no automatic series lock — the consistency comes from reusing the same archetype and the same wording, not from a setting.

BookBub Featured Deals are the single biggest indie thriller promo channel and they have firm cover requirements — a 330 × 500 px thumbnail rendered cleanly, watermarks and stock-photo logos disqualified, title readable at that size, no spine art bleeding into the front. A paid download satisfies all four by default — the 1600 × 2560 source resizes to 330 × 500 with full title legibility, the paid file is clean and unwatermarked, and there is no spine bleed since the print wrap is a separate export. (Submit from a paid download, not a free preview — the free previews are watermarked, which BookBub rejects.) Get rejected by BookBub once and rebooking takes weeks; the conventions in this article are what keeps the first submission clean.

Kindle Unlimited is roughly 60% of indie thriller sales, and the KU "Available with Kindle Unlimited" rail shows covers at a tighter thumbnail than Amazon search — around 120 px wide. At that size, type-led covers (79% of Top-100) survive while busy compositions vanish. The high-contrast near-monochrome palette and single tense focal element from the bestseller conventions are exactly what holds up at the KU thumbnail size. A cover designed to survive KU also survives Amazon search; the inverse is not always true.

They occupy near-opposite visual lanes — easy to get wrong, costly when you do. Cozy mystery uses a single hero object (cat, teapot, garden gate, vintage shop sign) on a navy or sage flat ground with a friendly serif title — the menace is implied, not shown, and the palette has warmth. Domestic thriller (or domestic noir) uses a quiet house, lone window, or solitary figure on a muted gray-navy ground with sparse condensed type — the menace IS the composition's silence, palette is cold-restrained. Bright friendly = cozy; cold silent = domestic. Mismatch the dialect and you draw the wrong reader who DNFs in the first chapter, costing you a review.