Preview · Plates in Production
The Gallery
A working preview of the reference plates being prepared for the archive — each one researched, fact-checked, and rendered in the natural-history plate style. Not yet for sale; here so you can see where this is going.
Simple Time Signatures
2/4, 3/4, 4/4
Essential Data Structures
Arrays, Trees, Graphs and How They Work
Ordinal Directions
Cardinal & Intercardinal Points
Logical Fallacies
Common Errors in Reasoning — and How to Spot Them
Latitude & Longitude Zones
Earth's Geographic Divisions
Special Time Signatures
Cut Time, Alla Breve and Free Time
The Sixteen Compass Points
The Complete Mariner's Rose
Stock Market Glossary
Essential Investment Terminology
Compound Time Signatures
6/8, 9/8, 12/8
Asymmetric Time Signatures
5/4, 7/8 and Irregular Metres
Semaphore Flag Signalling
Flag Signaling Alphabet
The Villanelle
Nineteen Lines · Two Alternating Refrains · Obsessive Return
The Sestina
The Mathematical Form — Thirty-Nine Lines, Six Rotating End-Words
Poetic Forms
Essential Verse Structures & Their Patterns
The Major System
Turn Numbers Into Words Into Unforgettable Images
Statistics & Probability
Understanding Data, Chance and Uncertainty
Number Systems
Classification, Operations & Conversions
Number Theory: Notable Sequences
Primes, Fibonacci, Lucas, Mersenne & More
Complex & Imaginary Numbers
A Visual Guide to i and the Complex Plane
Essential Geometry Theorems
Pythagoras, Euclid and the Foundations of Shape
Stellar Classification
OBAFGKM — Oh Be A Fine Girl Kiss Me
Navigation Stars
Essential Stars for Celestial Navigation
Hubble Galaxy Types
Spiral, Elliptical, Irregular & the Tuning Fork
The 8 Planets
Order, Moons, Composition & Key Facts
Celestial Navigation — Survival Reference
Twenty Essential Stars for Survival at Sea
Celestial Navigation
Navigating by Ancient Light
The 110 Messier Objects
Nebulae, Clusters & Galaxies Visible Through Small Telescopes
The Dwarf Planets
The Five Official Minor Worlds of Our Solar System
88 Modern Constellations
The IAU Official Star Patterns
Map Projections
How to Flatten a Sphere
Major Spacecraft Missions
From Sputnik to James Webb — A Timeline of Exploration
12 Zodiac Constellations
The Ecliptic Belt From Aries to Pisces
World Capitals
195 Countries and Their Capital Cities
Maritime Signal Flags
International Code of Signals
Calculus Concepts
Limits, Derivatives & Integrals — The Mathematics of Change
Algebra Fundamentals
Variables, Equations & the Language of Mathematics
Voice Types
The Human Vocal Range
Orchestral Families
Strings, Woodwinds, Brass and Percussion
Rhythm Values
The Note Duration Hierarchy
Navigation & Tempo Markings
Repeats, Codas and Speed Indications
Scale Degrees
Tonic Through Leading Tone
Dynamics Markings
From Pianissimo to Fortissimo
The Musical Staff & Clefs
Reading the Lines and Spaces
Accidentals
Sharps, Flats and Naturals
Flags of the World
195 National Flags — Colours, Symbols and Meaning
Periodic Table of Elements
Complete Element Reference with Properties and Trends
Chemical Bonding
How Atoms Form Connections
Electrochemistry & Redox
Oxidation, Reduction & the Activity Series
Molecular Geometry & Chemical Bonding
How Atoms Connect and Molecules Take Shape
VSEPR Molecular Geometry
How Atoms Arrange in Three-Dimensional Space
Chemical Reaction Types
Six Fundamental Patterns of Chemical Change
Acids, Bases & the pH Scale
The Spectrum from Corrosive to Caustic
The Circle of Fifths
Key Signatures, Scales and Harmonic Relationships
Tectonic Plates
The Dynamic Foundation of Earth's Surface
Angle Addition Proofs
Visual Proofs of sin(α+β) and cos(α+β)
Trigonometric Functions
The Geometry of Circles and Triangles
The Unit Circle & Six Functions
Trigonometry as Circle Geometry
The Law of Cosines
Generalising Pythagoras to All Triangles
Complex Numbers as Rotation
Why Multiplication by i is a 90° Turn
Financial Literacy
Essential Concepts for Personal Finance
The 20 Amino Acids
Structure, Properties & the One-Letter Code
Essential Knots & Rope Work
Practical Knots for Every Situation
The Carbon Cycle
Reservoirs, Fluxes and the Human Disruption
Photosynthesis & Respiration
How Plants Turn Sunlight Into Sugar
Storm Intensity Scales
Saffir-Simpson + EF - Placemat
Classification Systems for Tornadoes and Tropical Cyclones
Earth's Extremes
Records - Placemat
Highest Mountains, Longest Rivers, Deepest Oceans
10 World Biomes
Whittaker Biomes - Placemat
From Tundra to Tropical Rainforest
Beaufort Wind Scale
13 Forces - Placemat
An Empirical Measure of Wind Speed Based on Observed Conditions
Method of Loci
Memory Palace - Placemat
The Memory Palace — Turn Any Space Into a Filing Cabinet
Essential Physics Constants
Defining Constants - Placemat
Fundamental Values of the Physical Universe
The Scientific Method
The Loop - Placemat
A Systematic Approach to Investigation & Discovery
Mohs Hardness Scale
10 Minerals - Placemat
A Comparative Scale of Mineral Resistance to Scratching
IUCN Red List Categories
7 Risk Levels - Placemat
7 Levels of Extinction Risk
DNA & Genetics
Double Helix - Placemat
Double Helix, Base Pairs & the Code of Life
Cooking Measurements & Conversions
Kitchen Reference - Placemat
Cups, Grams, Tablespoons — The Universal Kitchen Reference
The Nitrogen Cycle
5 Steps - Placemat
5 Steps From Atmosphere to Organism and Back
Richter Magnitude Scale
Measuring the Tremor - Placemat
A Logarithmic Measure of Earthquake Energy Release
Trophic Levels & Food Webs
Architecture of Life - Placemat
Producers, Consumers and Lindeman's 10% Rule
The 8 Parts of Speech
Eight Classes · Placemat
Building Blocks of Language
Multiplication Tables
1-20 Tables · Placemat
Times Tables 1 Through 20
The Punctuation Hierarchy
Pause Spectrum · Placemat
Sentence Boundaries and Pauses
Mayan Numerals
Base-20 System · Placemat
Base-20 Vigesimal System
Fractions, Decimals & Percentages
Three Notations · Placemat
Three Ways to Express the Same Number
Roman Numerals
Classical System · Placemat
The Classical Counting System
Morse Code
Full Chart · Placemat
The Rhythm of Dots and Dashes
The Human Skeletal System
206 Bones · Placemat
206 Bones and Their Functions
25 Cognitive Biases
All 25 · Placemat
The Mental Shortcuts That Trick Your Brain
Animal Classification
Placemat · cutaway pyramid
6 Kingdoms, 7 Taxonomic Ranks & the Tree of Life
20 Keystone Species
Placemat · field guide
The Organisms That Hold Ecosystems Together
Newton's Laws of Motion
Placemat · three laws
Three Laws That Govern Everything That Moves
Geological Time Scale
Placemat · 24-hour clock
4.6 Billion Years of Earth's History
Bloom's Taxonomy
Placemat · guide
6 Levels of Thinking — From Remember to Create
Calendar Systems of the World
Placemat · systems compared
Seven Major Calendrical Traditions
First Aid Essentials
Placemat · five-minutes guide
What to Do in the First Five Minutes
Cell Structure & Function
Placemat · antique sepia
The Building Block of All Living Things
Human Body Systems
Eleven Systems Overview · Placemat
Eleven Systems That Keep You Alive
96 plates previewed. More are added as they pass fact-checking.
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