STH 4 ID
Kelly Link
Flatland: A Romance of Many Dimensions (Mobi Classics)
Edwin A Abbott,
An Introduction to Processing and Music Visualization
Chrisopher Pramerdorfer
Hacker Monthly #21
Netizens Media
Hacker Monthly (21)
Open Data Structures (in C++)
Pat Morin
Open Data Structures (in Java)
Open Data Structures (in pseudocode)