What you may expect to find here in the near future
The English translation of "De Thiende" by Rober Norton, published in 1608.
The French translation of "De Thiende" by Stevin himself, published in 1585.
A 17-th century adaptation in Danish by Christoffer Dybvad:
"Decarithmia, ded er Thinde-regenskab", Leiden 1602 (With thanks to Diederik Grit).
Addition af explanatory notes to De Thiende and its translations
Comparison of the 17-th century translations with the Dutch original
An extensive biography in English
Contributions by other authors
Other texts by Stevin