Quick answer: When buying an adult colouring book, check five things: paper weight (160gsm or more so colours don't bleed through), binding (wire-bound books lie flat), artwork (hand-drawn rather than AI-generated), page design (detailed but not cluttered) and subject (something the person genuinely cares about). A good quality UK adult colouring book typically costs £10 to £20.
The adult colouring book checklist
1. Paper weight
Thin paper (80 to 100gsm, like printer paper) lets pens bleed through and tears easily. Look for 160gsm or heavier for a smooth, sturdy page that handles layering. All Britain in Lines books use 160gsm paper.
2. Binding
Glued (perfect-bound) books fight you as you colour near the spine. Wire-bound books lie completely flat, so every part of the page is easy to reach.
3. Hand-drawn vs AI artwork
Many cheap colouring books are now AI-generated, which can mean broken lines, impossible shapes and pages that look alike. Hand-drawn artwork is more accurate and more satisfying to colour. Learn more in hand-drawn vs AI colouring books.
4. Page design
Ultra-dense designs look impressive but can feel overwhelming. Open, structured line work is more relaxing and lets you finish a page in one sitting or spread it over a week.
5. Subject
The best colouring book is one the person cares about. Architecture and real places, such as a hometown, a favourite holiday spot or Britain's castles, give each page meaning.
6. Size
A4 gives generous space for detail and is comfortable for most people.
7. Where it's printed
Books printed in the UK support local printers and usually have better quality control.
How Britain in Lines books compare
- 160gsm paper
- Wire-bound to lie flat
- Hand-drawn by independent artists
- 20 open, structured illustrations of real UK places
- Soft-touch cover and printed in the UK
- £16.99, with 10% of every sale going to Martin House Children's Hospice
Browse the collection, or read our guide to colouring pencils.
Frequently asked questions
What paper weight is best for an adult colouring book?
160gsm or heavier is ideal. It's thick enough for pencils and most pens without bleeding through.
Is wire-bound better for colouring books?
Yes. Wire-bound books lie flat, making it much easier to colour right to the edge of the page.
How can I tell if a colouring book is AI-generated?
Look for broken or wobbly lines, shapes that don't make sense, and repetitive pages. Hand-drawn books show consistent, intentional line work.
How much should a good adult colouring book cost?
Expect to pay £10 to £20 for a good quality UK adult colouring book.
