Presentation:
Strategy is the art of coordinating actions to achieve a goal. It comes from ancient greek stratêgos, name given to the Army general in Athena. Strategy has to be distinguished from tactics. Tactics are the means to be used to reach a goal, it comes from greek taktikê.

My research:
I identify three categories of strategies:
Military strategy, dealing with the choices to make by an army in order to win a war or maintain peace.
It is composed of different specialties: naval strategy, air strategy, ground strategy, nuclear strategy, etc.
Economical strategy, dealing with the choices to make by a company to develop economically.
Economical strategy covers different aspects of companies life: search ofr new markets, competition, etc.
Martial strategy, dealing with decisions (reflexes) to make in case of a fight or attack by one or several opponents.
Martial strategy includes striking strategy, grappling strategy, fighting with weapons strategy, etc.

The French version of this section includes many books advices.

If you know rare strategy books, feel free to let me know.
Particularly, I'm looking for:
writings from Gui Guzi, the teacher of Sun Bin & Pang Juan,
writings of the Italian Black Princes (i principi neri),
writings of Mausole,
Chinese books like Wu Chi's "Wu Zu", Shang Yang's Book of Lord Shang, Su Ma's Su Ma Fa, Three strategies of Huang Shi Kong, Tai Kong's 6 secret teachings and also (from exact pinyin) Zuo3 Zhuan4, Zhan4 Guo2 Ce4, Lv4 Shi4 Chun1 Qiu1, Zhou1 Yi4 and the less known Tai4 Bai2 Yin1 Jing2, Gui3 Gu3 Zi3, Wei4 Liao2 Zi3, Ji4 Xiao4 Xin1 Shu1, Wu3 Jing1 Qi1 Shu1, Shou3 Cheng2 Lu4, Hu3 Ling2 Jing1.

Useful links:
http://www.sonshi.com: all about SunZi
http://www.au.af.mil