John Martineau
Quadrivium
Quadrivium
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Number, geometry, music, and cosmology — the four disciplines the ancients considered the foundation of all knowledge.
Quadrivium, edited by John Martineau and produced by Wooden Books, gathers the four classical liberal arts of the medieval university into a single beautifully designed volume. These are not separate subjects. They are four expressions of the same underlying order — the mathematical structure of reality as understood from Pythagoras through the Renaissance.
Inside:
- Number — arithmetic as the study of pure quantity
- Geometry — number in space, from Euclid to the Platonic solids
- Music — number in time, ratio, and harmonic proportion
- Cosmology — number in space and time, the structure of the heavens
Illustrated throughout with diagrams, charts, and geometric constructions. A reference work and a meditation on the unity of knowledge.
Size Guide
Size Guide
Select your garment's blank style to view sizing dimensions:
INDEPENDENT TRADING CO. IND4000 - PULLOVER HOODIE (INCHES)
- XS: Chest Width: 20" | Length: 27.5"
- S: Chest Width: 21" | Length: 28.5"
- M: Chest Width: 23" | Length: 29.5"
- L: Chest Width: 24.5" | Length: 30.5"
- XL: Chest Width: 26.5" | Length: 31.5"
- 2XL: Chest Width: 27.5" | Length: 32.5"
- 3XL: Chest Width: 28.5" | Length: 33.5"
Fit Note: Heavyweight fleece designs with generous street fits. If you prefer a more traditional or slimmer fit, we recommend sizing down one size.
Garment Specifications
Garment Specifications
Design Philosophy: Built as "architecture of the self," our heavyweight fleece utilizes dropped shoulders and side ribing to hold shape. Graphics explore original alchemical drawings and ancient manuscript symbols, reinterpreting historical magical systems with absolute intentionality.
Care Instructions: Machine wash cold, inside out. Hang dry is recommended to maintain the premium structure of the heavy fleece, or tumble dry low. Do not iron over embroidery/graphics.
Shipping & Returns
Shipping & Returns
Shipping: Since each garment is hand-printed and embroidered to order in our studio in Saint-Jean-sur-Richelieu, QC, please allow 3-5 business days for production before shipment. Standard shipping within Canada typically takes 2-7 business days.
Returns: Because each piece is custom crafted for you in a limited run, all sales are final except in cases of manufacturing defects. If you have sizing concerns, please refer to our size guide before ordering.

Craftsmanship & Textures
Embroidery closeup
Material Grain
High-Density Embroidery
Our alchemical designs and sigils are rendered with over 40,000 stitches. Utilizing specialized high-density embroidery threads, each detail stands in three-dimensional relief, creating a premium weight and tactile texture that standard print methods cannot replicate.
Heavyweight 450 GSM Loopback Fleece
Woven with dense 3-end fleece structure for supreme warmth and rigidity. It provides structured drape, holds its shape under wear, and presents a soft, brushed feel against the skin. Engineered as a physical shield and daily armor.
Hand-Finished in Quebec
Every garment is individually inspected, finished, and packaged by hand in our studio in Saint-Jean-sur-Richelieu, Quebec. This meticulous local finishing process ensures that every thread is secure and the print quality is flawless before leaving our space.