Ridolfo Capoferro published his Gran Similacro dell'arte e dell'uso della Scherma (Great Representation of the Art and Use of Fencing) in 1610. He was a fencing master from Siena and his book is dedicated to the Prince of Urbino.
Currently, three translations of Capoferro's text are available. One, published online and translated by William Wilson and Jherek Swanger, is available for free here.
Another, translated by Jared Kirby, is titled Italian Rapier Combat and is available from fine bookstores everywhere.
The third and latest translation is "The Art and Practice of Fencing", by Tom Leoni, published by Freelance Academy Press in late 2011, see Books in Print for a direct link.
A Note on the Spelling of Capoferro: Because there is an apparent space in the name of the author in the original publication, Capoferro is often spelled as two words: Capo Ferro. However, a look at sources where he is named or listed, such as in the works of other fencing masters (for example, see page 6 of Giuseppe Morsicato-Pallavicini's 1670 fencing treatise), Jacopo Gelli's fencing bibliography, the US Library of Congress, and the declension of the Latin form of his name--as well as the spelling of the surname in modern Italy--shows it to be one word.
Capoferro's work includes 43 illustrated plates describing fencing actions.
8 Week Basic Seminar
This 8 week Seminar introduces the basics of Italian fencing. The seminar was created as a clinic for a group of SCA fencers in Sacramento. The lessons are a collaboration between Puck Curtis, Eric Myers, and Kevin Murakoshi.
Davis Fencing Academy Classes
This class was devoted to teaching and drilling the basics of Capoferro's rapier system. It was designed as a series of 8 week segments that each focus on different concepts. It was taught at the Davis Fencing Academy and was a collaborative effort between Puck Curtis, Eric Myers, and Kevin Murakoshi.