Cubeworld    by Hank Gross
Price: $9.99 USD. 20400 words. Published on February 8, 2010. .
An adventure in solid geometry wherein our spherical planet is reformed into a cube, engendering many odd effects -- rain falls at an angle, the oceans gravitate to the centers of the sides, and unexpected pyramidical forces send Cubeworld on a hairraising journey through the solar system. If you liked Flatland, you'll like Cubeworld.

Practice Makes Perfect in Geometry: Angles, Triangles and other Polygons    by John Parnell
Price: $1.99 USD. 18830 words. Published on February 27, 2010. .
The best way to succeed in Geometry is to practice taking test questions. This volume contains 459 problems on Angles, Triangles & other Polygons divided into 13 chapters: Angles; Parallel Lines w/ a Transversal; Triangles; Triangle Inequality; Properties of Quadrilaterals; Parallelograms & Rectangles; Area & Perimeter of Polygons; Circles; Combinations of Figures; Planes; & Geometry Probability.

Practice Makes Perfect in Geometry: Angles, Triangles and other Polygons with Answers    by John Parnell
Price: $3.99 USD. 19500 words. Published on February 28, 2010. .
This volume has 459 problems on Angles, Triangles, & other Polygons divided into 13 chapters: Angles; Parallel Lines w/ a Transversal; Triangles; Triangle Inequality; Properties of Quadrilaterals; Parallelograms & Rectangles; Rhombuses & Squares; Trapezoids & other Polygons; Area & Perimeter of Polygons; Circles. All answers are provide. Try the questions. Check your answers. Good Luck !!!

Practice Makes Perfect in Geometry: Three-Dimenstional Figures    by John Parnell
Price: $1.99 USD. 4370 words. Published on February 28, 2010. .
One of the best ways to succeed in Geometry is to practice taking real test questions. This volume contains 133 problems on Three-Dimensional Figures divided into four chapters: Definitions and Shapes; Rectangular Solids; Cylinders, Cones, Spheres; and Prisms and Pyramids. Try the problems. With a little Practice, Practice, Practice, you’ll be Perfect, Perfect, Perfect. Good Luck!!

Practice Makes Perfect in Geometry: Three-Dimensional Figures    by John Parnell
Price: $3.99 USD. 19500 words. Published on February 28, 2010. .
One of the best ways to succeed in Geometry is to practice taking real test questions. This volume contains 133 problems on Three-Dimensional Figures divided into four chapters: Definitions and Shapes; Rectangular Solids; Cylinders, Cones, Spheres; and Prisms and Pyramids. Try the problems. With a little Practice, Practice, Practice, you’ll be Perfect, Perfect, Perfect. Good Luck!!!

Practice Makes Perfect in Geometry: Three-Dimensional Figures with Answers    by John Parnell
Price: $3.99 USD. 4550 words. Published on February 28, 2010. .
One of the best ways to succeed in Geometry is to practice taking real test questions. This volume contains 133 problems on Three-Dimensional Figures divided into four chapters: Definitions and Shapes; Rectangular Solids; Cylinders, Cones, Spheres; and Prisms and Pyramids. Answers to all the questions are provided. Try the problems. With a little Practice, you’ll be Perfect. Good Luck!!!

Practice Makes Perfect in Mathematics: Algebra (Volume 2 of 2)    by John Parnell
Price: $4.99 USD. 35600 words. Published on August 13, 2010. .
One of the best ways to succeed in Algebra is to practice taking real test questions. This ebook contains over 1,000 problems on Algebra divided into thirty-two chapters. Try the problems. Check your answers. With a little Practice, Practice, Practice, you’ll be Perfect, Perfect, Perfect. Good Luck!

Universe: An Equation!    by Teymur Roshdi
Price: Free! 1570 words. Published on August 4, 2011. .
'Universe:An Equation' is a philosophical article in which I tried to treat the concept of 'Justice' by the help of scientific explanations.

Spacetecture    by Daniela Bertol
Price: $3.99 USD. 21940 words. Published on August 18, 2011. .
Abridgment of the fully illustrated SPACETECTURE, part of a trilogy of books and interactive content exploring space and its transformation in the information age. The emphasis is on computing design applications, but the concept of space is also explored from an interdisciplinary approach ranging from geometry to psychology of perception.

Solving the Three Ancient Problems using the Graef Curves    by Edward V. Graef
Price: $4.99 USD. 5310 words. Published by Marsha Bauer on September 25, 2011. .
Three Ancient Problems (trisecting the angle, squaring the circle, duplicating the cube) have challenged mathematicians for 2000 years. It's impossible to solve them using compass and straightedge alone, so mathematicians were challenged to create a curve or curve family to solve all three. No one accomplished this feat--until Graef. His curves were verified/published in top math publications.