found nothing better to date.

A reference book for the general culture, which includes two parts: themes and personalities. Fun to read because very well written, full or at least very thorough, this book can be used to prepare support is also its purpose, but also to those who want to improve their knowledge without taking classes or learn being entertained rather than following manuals.
For those preparing the competition, it is interesting because there are not only the knowledge but also the way the articles are written, which can soak up the way (good) write.