Hahnemühle Watercolour Book: Cotton Pages, Sizes
The Hahnemühle Watercolour Book is a hardbound sketchbook of real watercolor paper from the German mill Hahnemühle. The 100% cotton version has 30 sheets (60 pages) of 250 g/m² fine-grain, natural-white paper with the same surface on both sides, so paintings can cross the spread. The A5 portrait book is 10625352.
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Product facts
- Product
- Hahnemühle Watercolour Book 100% Cotton, A5 Portrait, 250 g/m², 30 sheets (10625352)
- Brand
- Hahnemühle
- Brand origin
- Germany
- Made in
- Not stated*
- Material
- 100% cotton watercolor paper, 250 g/m²; black hard cover with ribbon and elastic band (Hahnemühle)
- Price range
- $$$$20–75 per ream or pad
- Rate it
Notes on these facts
- Made by Hahnemühle (Lower Saxony, Germany). Country of manufacture not stated: Hahnemühle's German product page for the Watercolour Book 100% Cotton doesn't state where the book is made, and neither does Amazon US's listing. Hahnemühle is a German paper mill, but we don't state the book's origin without a source. Price: example listing.
- Price bands are typical US retail, checked October 2026.
Key takeaways
- The 100% cotton book holds 30 sheets (60 pages) of 250 g/m² natural-white paper with a fine grain on both sides.
- The original Watercolour Book uses 200 g/m² cellulose paper, also 30 sheets, with a moisture-repellent cover.
- Both come in eight formats: A6, A5 and A4 in portrait or landscape, plus 14 × 14 cm and 19.5 × 19.5 cm squares.
- Hahnemühle says the paper is acid-free, age-resistant and vegan, and surface-sized so masking fluid lifts cleanly.
- On October 23, 2026, Amazon's A5 cotton book showed 4.5 stars from 497 ratings and 100+ bought in the past month.
What is the Hahnemühle Watercolour Book?
It’s a hardbound sketchbook filled with real watercolor paper, made for painting on location, from Hahnemühle, a German paper mill. Hahnemühle pitches it at urban sketchers and plein-air painters.
The paper has a fine grain that is the same on both sides of each sheet, so a painting can run across the whole open spread. Hahnemühle makes the book in two papers: 100% cotton and cellulose.
Watercolour Book 100% Cotton specs
30 sheets of 250 g/m² natural-white cotton paper in a black hard cover with a ribbon and an elastic band. Hahnemühle’s German page lists:
| Spec | Watercolour Book 100% Cotton, A5 portrait |
|---|---|
| Item number | 10625352 (GTIN 4011367115975) |
| Size | A5, 148 × 210 mm (5.8 × 8.3 in), portrait |
| Paper | 100% cotton, 250 g/m² (92 lb), natural white |
| Surface | Fine grain, same on both sides; surface-sized |
| Sheets | 30 (60 pages) |
| Cover | Black hard cover, black ribbon, elastic band |
| Archival | Acid-free, age-resistant, vegan |
Hahnemühle says the cotton suits every watercolor technique, especially wet-in-wet. Masking pens and tapes lift without residue, and the sizing lets you make corrections.
Cotton or original: which Watercolour Book should you buy?
Choose the cotton book for heavier paper and wet-in-wet work, the original 200 g/m² cellulose book for a lighter option.
| Watercolour Book 100% Cotton | Watercolour Book (original) | |
|---|---|---|
| Paper | 100% cotton | 100% cellulose |
| Weight | 250 g/m² | 200 g/m² |
| Sheets | 30 (60 pages) | 30 (60 pages) |
| Cover | Black, with ribbon and elastic | Moisture-repellent, with elastic |
| A5 portrait item | 10625352 | 10628814 |
Hahnemühle also makes a Deckle Edge cotton book with hand-torn edges, a Toned Watercolour Book with tinted paper, and a fold-out ZigZag book.
What sizes does the Watercolour Book come in?
Eight: A6, A5 and A4, each in portrait or landscape, and two squares. Both versions come in every format.
| Format | Size | Cotton item number |
|---|---|---|
| A6 portrait / landscape | 105 × 148 mm (4.1 × 5.8 in) | 10625350 / 10625351 |
| A5 portrait / landscape | 148 × 210 mm (5.8 × 8.3 in) | 10625352 / 10625353 |
| A4 portrait / landscape | 210 × 297 mm (8.3 × 11.7 in) | 10625354 / 10625355 |
| Square | 140 × 140 mm (5.5 × 5.5 in) | 10625356 |
| Large square | 195 × 195 mm (7.7 × 7.7 in) | 10625357 |
How does it compare with other sketchbooks?
It’s real watercolor paper in a book; the other sketchbooks we cover use lighter paper meant for dry media and light washes.
| Hahnemühle Watercolour Book (cotton) | Stillman & Birn Alpha | Moleskine Art Sketchbook | |
|---|---|---|---|
| Paper weight | 250 g/m² | 150 g/m² | 165 g/m² |
| Best for | Watercolor and gouache | Pencil, ink, light washes | Pencil and ink |
| Pages | 60 | 124 | 104 (Large) |
For studio paintings, a block glued on four sides, such as the Hahnemühle Harmony or Arches, stays flatter than any book. To paint on the go, pair the book with a small set such as the Sakura Koi Pocket Field Sketch Box.
How much does the Watercolour Book cost?
The A5 cotton book is in our $$$ band ($20–75).
On October 23, 2026, Amazon’s A5 portrait cotton book showed 4.5 stars from 497 ratings, 100+ bought in the past month and a 119th-place rank in Watercolor Paper. The A6 landscape original showed 4.7 stars from 474 ratings.
Where is the Hahnemühle Watercolour Book made?
Hahnemühle doesn’t say on the product pages we read, so check the label. Hahnemühle is a German paper mill in Lower Saxony.
Frequently asked questions
Is the Hahnemühle Watercolour Book 100% cotton?
One version is. Hahnemühle sells the Watercolour Book 100% Cotton at 250 g/m² and the original Watercolour Book in 200 g/m² cellulose paper; check the cover before you buy.
How many pages are in a Hahnemühle Watercolour Book?
30 sheets, or 60 pages, in every size of both the cotton and the original versions.
Can you paint across both pages?
Yes. Hahnemühle says the surface is the same on the front and back of each sheet, so you can carry a painting across the full width of the open book.
Does the paper buckle with heavy washes?
Some buckling is normal in a sketchbook. The 250 g/m² cotton paper is heavier than most sketchbook paper but lighter than a 300 g/m² block glued on four sides.
Can you use masking fluid in the Watercolour Book?
Yes. Hahnemühle says masking pens and tapes come off the cotton paper without residue, and its surface sizing even allows erasing.
Does the Hahnemühle Watercolour Book come in a square format?
Yes, two: 14 × 14 cm and 19.5 × 19.5 cm, in both the cotton and the original versions, alongside A6, A5 and A4 in portrait or landscape.
Is the Hahnemühle Watercolour Book vegan?
Yes. Hahnemühle says all its papers, including both Watercolour Books, are vegan, acid-free and age-resistant.
Sources
- Hahnemühle (DE): Watercolour Book 100 % Cotton (250 g/m², 30 sheets / 60 pages, formats and item numbers 10625350–10625357; cover, ribbon, elastic; acid-free, vegan)
- Hahnemühle (DE): Watercolour Book (200 g/m², 30 sheets / 60 pages, moisture-repellent cover, formats and item numbers 10628810–10628816)
- Hahnemühle (DE): Watercolour Books collection (cotton or cellulose, 200, 250 and 300 g/m²; Deckle Edge, Toned and ZigZag books)
- Amazon US: Hahnemühle 100% Cotton Watercolor Book, 5.83 × 8.27 in, Portrait (10625352; GTIN 4011367115975; ratings and rank read October 23, 2026)
- Amazon US: Hahnemühle Watercolor Book A6, 200 g/m², Landscape (ratings read October 23, 2026)