30% OFF: Tee Collector's Sale. Up to 40% off the rest
ends soon
Sell your art
Login
Signup
Hardcover Journals
Retro arcade carpet themed decor
Redbubble logo
Explore
For You
Retro Gaming
Horror
Sci-Fi
Pride
Pop-Culture
Fresh Finds
Fan Art
Clothing
New
All Clothing
T-Shirts
New
Hoodies & Sweatshirts
Hats
Socks
Dresses
Tank Tops
Stickers
All Stickers
Holographic Stickers
Funny Stickers
Car Stickers
Bumper Stickers
Water Bottle Stickers
Cool Stickers
Anime Stickers
Laptop Stickers
Magnets
Custom Stickers
Phone Cases
All Phone Cases
iPhone Cases
Samsung Galaxy
New
Wall Art
All Wall Art
Posters
Photographic Prints
Art Prints
Tapestries
Canvas Prints
Framed Prints
Art Board Prints
Home & Living
All Home & Living
Mugs
Throw Pillows
Throw Blankets
Tapestries
Magnets
Aprons
Coasters
Jigsaw Puzzles
Duvet Covers
Acrylic Blocks
Clocks
Shower Curtains
Bath Mats
Kids & Babies
All Kids Clothes
Kids T-Shirts
Baby One-Pieces
Kids Pullover Hoodies
Accessories
All Accessories
Hats
Socks
Pins
Backpacks
Tech Accessories
Tote Bags
Makeup Bags
Toiletry Bags
Zipper Pouches
Duffle Bags
Scarves
Stationery & Office
All Stationery & Office
Greeting Cards
Spiral Notebooks
Mouse Pads & Desk Mats
Postcards
Hardcover Journals
Gifts
All Gifts
Gifts for Dad
Gifts for Gamers
Gifts for Her
Gifts for Him
Gifts for Animal Lovers
Gifts Under $50
Gifts for Outdoorsy Types
Gifts for Kids
Stocking Stuffers
Gift Cards
Diameter Hardcover Journals
167 items
Hardcover Journals
Filters (2)
167 items
Most Relevant
Circles Hardcover Journal
Montage-Madness
$19.48
$24.35
(20% off)
Diameter Hardcover Journal
Yanmos
$19.46
$24.33
(20% off)
shipibo Hardcover Journal
DZ-Merch
$19.48
$24.35
(20% off)
Diameter Hardcover Journal
Rose Beck
$19.48
$24.35
(20% off)
Diameter of planets Hardcover Journal
RadiantGraphics
$31.65
$39.57
(20% off)
Pi Hardcover Journal
Carol and Mike Werner
$19.48
$24.35
(20% off)
Saturn the ringed planet. Hardcover Journal
josiasalves65
$19.48
$24.35
(20% off)
Happy My Pi Day Celebrate Mathematics on March 14th Hardcover Journal
tjred01
$18.50
$23.13
(20% off)
Lime Green Diameter Stripes Hardcover Journal
Looly Elzayat
$18.83
$23.54
(20% off)
Purple Round Pattern Hardcover Journal
Rickann
$19.48
$24.35
(20% off)
circle pattern, abstraction Hardcover Journal
zzzozzo
$19.48
$24.35
(20% off)
Funny Pi - Numbers Math Equation Ratio Diameter Humor Hardcover Journal
stuch75
$21.10
$26.38
(20% off)
circle pattern, abstraction Hardcover Journal
zzzozzo
$19.48
$24.35
(20% off)
Math Pie Symbol Hardcover Journal
4tomic
$19.48
$24.35
(20% off)
circle pattern, abstraction Hardcover Journal
zzzozzo
$19.48
$24.35
(20% off)
circle pattern, abstraction Hardcover Journal
zzzozzo
$19.48
$24.35
(20% off)
circle pattern, abstraction Hardcover Journal
zzzozzo
$19.48
$24.35
(20% off)
blue circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Area of a Pizza (white) Hardcover Journal
avidfan2000
$19.48
$24.35
(20% off)
Circle(s) Hardcover Journal
DarkmoonStudios
$20.29
$25.36
(20% off)
Purple Sky Cube Mandala Star & CircleVisions (G'ish) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Power Line Radius Seamless Pattern Hardcover Journal
Dodern
$17.85
$22.32
(20% off)
Pi (black) Hardcover Journal
avidfan2000
$19.48
$24.35
(20% off)
Pi (white) Hardcover Journal
avidfan2000
$19.48
$24.35
(20% off)
circle pattern, abstraction Hardcover Journal
zzzozzo
$19.48
$24.35
(20% off)
Space Junkie Hardcover Journal
alienfolklore
$19.48
$24.35
(20% off)
Soybean and Eclipse Gears Pattern on a Gray background Hardcover Journal
urbnbodga
$19.48
$24.35
(20% off)
Pi Hardcover Journal
How67
$21.10
$26.38
(20% off)
Icy Cube Mandala Star & CircleVisions (G'ish) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Pi is a mathematical constant that expresses the ratio of the circumference of a circle to its diameter. Hardcover Journal
VadimFromm
$19.48
$24.35
(20% off)
Red Sky Cube Mandala Star & CircleVisions (Y&P) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Funny Math Nerd Motivational Pi Greek- I'm PIece Of Circle! Hardcover Journal
Giulivo Store Graphic
$19.46
$24.33
(20% off)
Funny Math Nerd Abstract Pi Greek Logo! Hardcover Journal
Giulivo Store Graphic
$19.46
$24.33
(20% off)
Switzerland definition tourist Zurich funny gift Hardcover Journal
Levin-Wirp
$22.72
$28.41
(20% off)
Pi 3.142 π Mathematics T-Shirt - Greek Letter Pi Top Hardcover Journal
deanworld
$21.10
$26.38
(20% off)
Plastic pipes of large diameter black closeup Hardcover Journal
vladromensky
$21.27
$26.58
(20% off)
The Circle Hardcover Journal
ChemisTees
$18.66
$23.33
(20% off)
Circles pattern Hardcover Journal
Printables Passions
$20.29
$25.36
(20% off)
pi Hardcover Journal
bennewton0013
$21.10
$26.38
(20% off)
Power Line Radius Seamless Pattern Hardcover Journal
Dodern
$17.85
$22.32
(20% off)
Chic Pup: Sparkling Elegance and Unique Style Hardcover Journal
Reina75
$17.85
$22.32
(20% off)
three long parallel large diameter steel pipes of outdoor pipeline in the countryside are piping for aqueducts on a tuscan field at sunset Hardcover Journal
alessiapenny
$19.48
$24.35
(20% off)
Red and Yellow Gears Pattern on a Blue background Hardcover Journal
urbnbodga
$19.48
$24.35
(20% off)
White and Gray Gears Pattern on a Black background Hardcover Journal
urbnbodga
$19.48
$24.35
(20% off)
Pi Hardcover Journal
StarriesRoom
$19.48
$24.35
(20% off)
Pie Chart Hardcover Journal
ChemisTees
$18.66
$23.33
(20% off)
Power Line Radius Seamless Pattern Hardcover Journal
Dodern
$17.85
$22.32
(20% off)
purple heart circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Maths Pi Love Number Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
green circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Pi day March 14 Hardcover Journal
lobodelnoir
$19.48
$24.35
(20% off)
Magenta Vibes Hardcover Journal
JazzPWall
$21.10
$26.38
(20% off)
water small dam break inside of round circle Hardcover Journal
sammgdesign
$19.48
$24.35
(20% off)
Maths Pi Love Number Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
Maths Pi Love Number Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
yellow circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Pi is not rational Hardcover Journal
Ednathum
$20.29
$25.36
(20% off)
Maths Number Pi Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
Best colorated circle tshirt Hardcover Journal
Rida Faiz
$19.48
$24.35
(20% off)
Circles pattern Blue-Yellow Hardcover Journal
Printables Passions
$20.29
$25.36
(20% off)
purple circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Shiny metal nuts Hardcover Journal
EstelleRossetti
$18.18
$22.72
(20% off)
Lace Umbrella (Australian Tree Fern) Hardcover Journal
Kerryn Madsen-Pietsch
$21.91
$27.39
(20% off)
Maths Pi Love Number Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
Thin Black Circle Pattern Duvet Pillow Cover Hardcover Journal
deanworld
$21.10
$26.38
(20% off)
PI in the Sky Hardcover Journal
EyeMagined
$25.97
$32.46
(20% off)
Blue Moon Vortex Circle Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Circle by DRAW WITH BOO Hardcover Journal
DRAW-WITH-BOOO
$19.48
$24.35
(20% off)
orange circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Pumpkin Pi Joke Hardcover Journal
Sci-Ninja-Blog
$19.48
$24.35
(20% off)
Copy of Maths Pi Love Number Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
Maths Number Pi Circle Geometry Shirt Gift Hardcover Journal
beautifulshirts
$21.10
$26.38
(20% off)
Hardcover Journal
EstelleRossetti
$18.18
$22.72
(20% off)
Pi Irrational Number Hardcover Journal
CANJ72
$19.48
$24.35
(20% off)
Area of a Pizza (black) Hardcover Journal
avidfan2000
$19.48
$24.35
(20% off)
Copy of Fuchsia Circles Hardcover Journal
Yesskathe
$19.48
$24.35
(20% off)
Icosahedron Star (Y&O) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Cloudy Cube Mandala Star & CircleVisions (W) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Red Sky Cube Mandala Star & CircleVisions (W) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Icosahedron (T) Wall Of Fame Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
ARCHIMEDES and his PI CONSTANT Hardcover Journal
Daniel Hagerman
$22.72
$28.41
(20% off)
Icosahedron Star (V&O) Hardcover Journal
createVisions
$19.80
$24.75
(20% off)
Become a member.
Get 25% off your first order.
Plus other neat perks and exclusive savings to help you find the very thing.
Sign up
Previous
1
2
3
Next
Stationery & Office
Hardcover Journal
Diameter
Your secrets and dreams written in ink, or drawn in pencil, and hidden behind your favorite art. Diameter hardback journals from Redbubble are so very versatile and lucky for you they're available in a ruled, graph or blank 90gsm paper.
Circle
Circumference
Math
Pi
Geometry
3 14
Mathematics
Pi Day
Radius
Science
Geek
Pattern
Worldwide Shipping
Available as standard or express delivery
Learn more
- opens in new window or tab
Secure Payments
100% Secure Payment with 256-bit SSL encryption
Learn more
- opens in new window or tab
Free Return
Exchange or money back guarantee for all orders
Learn more
- opens in new window or tab
Local Support
24/7 Dedicated support
Learn more
- opens in new window or tab
