4DLab - Critical Thinking  

Foundations Of Transcomplex Numbers.
By E. Perez

Foundations Of Transcomplex Numbers, and The Golden EBook of Graphs of Mathematical Functions are my free EBooks for my visitors.

The Golden EBook of Graphs of Mathematical Functions.
By E. Perez

The Essentials of Perspective.
By L. W. Miller

For more info about the wonderful masterpieces in this Catalog visit also this Blog !

Another World or The Fourth Dimension.
By A. T. Schofield

How To Draw A Straight Line.
By A. B. Kempe

The Deluge In The Light Of Modern Science.
By William Denton

Flatland: A Romance of Many Dimensions.
By Edwin A. Abbott

The 4-D Doodler.
By Ralph Waldeyer

Alice in Wonderland.
By Lewis Carroll

For more info about the wonderful masterpieces in this Catalog visit also this Blog !

Readings of The Fourth Dimension Simply Explained.
By Henry P. Manning

Journey Under The Ground.
By Louis Holberg

Selected Papers of Charles Hinton About the Fourth Dimension.

Selected Essays from Mathematical Essays and Recreations.
By Hermann Schubert

One Million Random Digits.

44 Selected Puzzles and Pastimes from Amusements in Mathematics.
By Henry Ernest Dudeney

The Sand Reckoner.
By Archimedes

Selected Papers of Charles Hinton About the Fourth Dimension.