Doxzoo

Doxzoo is a UK-founded (2014) print-on-demand service that is one of the few genuine single-copy specialists for the low-content niche — coloring books, activity books, puzzle books, journals, and planners. Where KDP and Lulu treat coloring books as a generic paperback, Doxzoo has a dedicated coloring-book product line built around the two things that make or break these titles: anti-bleed paper and lay-flat binding.

For coloring books Doxzoo recommends and stocks heavy uncoated / matte text stock (70 lb. or 80 lb. Text, with 90 lb. uncoated interiors available), explicitly steering authors away from glossy or silk-coated paper so markers and colored pencils absorb without bleeding through. Covers can go up to 200 lb. Binding options include saddle-stitch, perfect bound, square booklets, plastic coil, and wire binding — the coil and wire options let a coloring or activity book lie completely flat, which perfect-bound POD can't do.

Because it is true POD, there is no minimum order: you can print a single copy to proof your layout and alignment before committing to a run. Registration is free with no subscription or setup fee — you pay only the per-unit production cost, quoted instantly online (a short coloring book starts in the low single dollars per copy and scales with page count, size, and binding). Doxzoo prints and ships from both US and UK facilities, delivering nationwide in the US and worldwide, with same-day/next-day production available on many products. A "Share & Sell" shareable-link feature lets authors sell direct to readers without building a storefront.

• Best for: Coloring, activity, and low-content book authors who need heavy uncoated paper and coil/wire binding with no minimum order
• Key features: True single-copy POD, dedicated coloring-book stock guidance (70–90 lb. uncoated), coil and wire lay-flat binding, custom sizes, US and UK production
• Pricing: Free to register (no subscription or setup fee); pay per copy at instant-quote production cost, with 10% off your first two orders
• Distribution: Direct-to-creator only — no Amazon or retail distribution, so pair with KDP or IngramSpark for retail reach
• Why authors love it: It solves the two problems that generic POD ignores for coloring books — bleed-through paper and pages that won't lie flat