Clarke Ching's I Think Not, Baby Puppy
A gentle introduction to extreme programming An introduction to TDD Roman numersals function in Excel - using TDD (by Clarke Ching, still draftish) 3. To learn more about the business benefit's of Agile

Taoist Scriptures - Tao Te Ching (Dao De Jing), Chuang Tzu, Wen Tzu
Philosophical Daoism's main scriptures are the Dao De Jing [Tao Te Ching], the Zhuang Zi [Chuang Tzu], and sometimes the Huahu jing [Hua Hu Ching], Lie Zi [Lieh Tzu], and Wen Zi [Wen Tzu]. Religious