El Lissitzky's About 2 Squares is a story about how two squares, one red, one black, transform a world. The commentary, More About 2 Squares, boxed in the same slipcase, provides a detailed analysis of this seminal work.

This textbook has been in constant use since 1980, and this edition represents the first major revision of this text since the second edition. It was time to select, make hard choices of material, polish, refine, and fill in where needed. Much has been rewritten to be even cleaner and clearer, new features have been introduced, and some peripheral topics have been removed. The authors continue to provide real-world, technical applications that promote intuitive reader learning. Numerous fully worked examples and boxed and numbered formulas give students the essential practice they need to learn mathematics. Computer projects are given when appropriate, including BASIC, spreadsheets, computer algebra systems, and computer-assisted drafting. The graphing calculator has been fully integrated and calculator screens are given to introduce computations. Everything the technical student may need is included, with the emphasis always on clarity and practical applications.

The Book of Squares by Fibonacci is a gem in the mathematical literature and one of the most important mathematical treatises written in the Middle Ages. It is a collection of theorems on indeterminate analysis and equations of second degree which yield, among other results, a solution to a problem proposed by Master John of Palermo to Leonardo at the Court of Frederick II. The book was dedicated and presented to the Emperor at Pisa in 1225. Dating back to the 13th century the book exhibits the early and continued fascination of men with our number system and the relationship among numbers with special properties such as prime numbers, squares, and odd numbers. The faithful translation into modern English and the commentary by the translator make this book accessible to professional mathematicians and amateurs who have always been intrigued by the lure of our number system.

What's a schnibble? A little bit or leftover--as in those fabric bits you're ready to use up! What could be more fun than a small quilt from 5" charm squares? A large one just like it from 10" Layer Cake squares! Enjoy 12 pairs of beautiful quilts, with a large and small quilt in each design, from the creative mind behind Miss Rosie's Quilt Company. Each quilt includes a materials and cutting list, and the assembly directions are the same for both quilts in each set. Learn from Moda's go-to gal for quilt designs. This author knows her stuff!

This innovative work replaces magic square numbers with two-dimensional forms. The result is a revelation that traditional magic squares are now better seen as the one-dimensional instance of this self-same geometrical activity.

Fall is here, with all its wonderful visual delights—not just colors, but shapes! This clever concept book follows a family on a trip to a pumpkin patch and invites children to pick out shapes from the seasonal scenery—apple bushel circles, square hay bales, diamond kites in the autumn sky! Felicia Sanzari Chernesky’s sweet verses are perfectly complemented by Susan Swan’s gorgeous collage-inspired art.