Artlandia SymmetryWorks
Adobe Illustrator plug-in that automates creation of surface designs and ornaments based on seventeen wallpaper groups. On-line purchase.

The Geometry Junkyard: Tilings
A collection of links.

Tessellation Links
Compiled by Suzanne Alejandre for the Math Forum.

Totally Tessellated
An introduction to tessellations explaining the basic underlying mathematics, and with many examples from real life.

The Penrose Tiling at Miami University
A summary of the history behind the Penrose tiling in the math department at Miami university.

The 14 Different Types of Convex Pentagons that Tile the Plane
Graphics and references.

Grotesque Geometry
Andrew Crompton's tiling and tessellation images.

Hop's Escher Tessellation Tiles
Escher-like tessellations.

Hyperbolic Tessellations
Explanations and graphics.

Tessellations with Java
Examples and source code.

Tessellations: Technology and Culture
Examples and Java applets.

The Seventeen Wallpaper Groups
Examples in traditional Japanese patterns.

Investigating Patterns: Symmetry and Tessellations
Links to activities and other resources.

Tessellating Wallpaper Patterns
Original tessellating desktop wallpaper tiles.

Intriguing Tessellations
By Marjorie Rice. Pentagons that tile the plane: details and links.

Tiling Plain and Fancy
Tiling from the mathematical and historical viewpoint by Steve Edwards. Provides a number of examples of various types of tiles that tile the plane and includes periodic tiling plus Penrose's aperiodic tiles.

Tessellations
A company selling foam puzzles, many based on planar tessellations (tilings) and fractals.

Chaos Tiles
This chaotic tiling consists of two equilateral pentagons, with angles (80, 160, 60, 140, 100) and (40, 200, 60, 100, 140). Sets are for sale.

Tessellations Using Geometer's Sketchpad
Description of a class project.

Tilings, Tessellations and Other Unusual Prints
Images and links by Peter Raedschelders.

Discrete Plane Symmetry Groups
Web text by Ana Kozomara.

Symmetry and Pattern: The Art of Oriental Carpets
Resources compiled by the Math Forum.

Alex Bateman's Origami
Tessellation images and software.

Escher Patterns
Compiled by Yoshiaki Araki.

Gallery of Symmetric Chaos
Includes: Symmetric icons and fractals; Quilts and planar repeating patterns; Colored wallpaper patterns.

Mike Field
University of Houston. Graphics and resources in symmetry and tiling.

Quasi-Periodic Tilings
Artist Eleni Mylonas uses tilings.

Java Penrose Tiler
A Java applet for experimenting with kites and darts.

Samantha's Wallpaper Page
Wallpaper patterns and symmetry groups.

Catalogue of Isohedral Tilings
From the article "One Corona is Enough for the Euclidean Plane" by Doris Schattschneider and Nikolai Dolbilin.

Symmetry and the Shape of Space
Chaim Goodman-Strauss, Arkansas. With interactive demos using Geometer's Sketchpad (requires Macintosh).

Symmetry and the Shape of Space
With interactive demos using Geometer's Sketchpad (requires Macintosh).

Tessellated, Interlocking Concrete Pavers and Molds
Pictures of some concrete tilings.

Tilings and Geometric Ornament
Applying principles of computer graphics to the creation of geometric ornament, as a continuation of the tradition of ornamental design using modern tools and algorithms.

17 Wall Paper Symmetry Groups to Create a Regular Division of the Plane
Graphics.

Hans Kuiper
Hans Kuiper's work. Tessellations and optical art. Also tessellation software with the 17 wallpaper groups.

Tessellation Tutorials by Suzanne Alejandre
Tutorials and templates for making tessellations using ClarisWorks, the Geometer's Sketchpad, HyperCard, HyperStudio, and straightedge and compass, including step-by-step instructions for classroom activities.

Penrose Tiles
Links in the Geometry Junkyard.

Pentagons that Tile the Plane
Known solutions and a new recipe.

William's Geometric Construction Page
Activities to create patterns using simple resources, such as making equilateral triangle from a circle. Suitable for upper primary and lower secondary ages.

Tessellation and Photography
A study for the endless possibilities of tessellating the plane based on the work of Dutch graphic artist M.C. Escher.

Landry Art
Art of Kenneth Landry. Tessellations, polyhedra and polyhedra decorated with tessellations.

Frieze Patterns
Definitions and images.

Symmetries, Patterns and Tessellations
Constructed with Geometer's Sketchpad by Allan Bergmann Jensen.

References about Tessellations
Compiled by Doris Schattschneider, Moravian College.

KaleidoTile
Software for Macintosh and SGI to create and manipulate tessellations of the sphere, Euclidean plane and hyperbolic plane, and to see how the Platonic solids are related to tessellations.

Java Kali
A program for drawing symmetrical patterns based on any of the 17 wallpaper groups, as well as several frieze and rosette groups.

Wallpaper Groups
Images and descriptions of the 17 plane symmetry groups.

Squared Squares and Squared Rectangles
Tilings of Squared Squares and Squared Rectangles, constructed using javascript.

Escher Web Sketch
Java applet drawing repeated patterns with selected symmetry.

TESS
Tessellation software. 11 rosette, all 7 frieze and all 17 wallpaper groups included.