Inkscape is a mature SVG vector graphics editor. You can run it on a number of platforms including GNU/Linux and Windows. It has a rich set of features and is popular and actively maintained. The Book of Inkscape: the definitive guide to the free graphics editor, by Dmitry Kirsanov is a comprehensive guide of 476 pages that describes in detail the various parts of the software. The book also includes six chapter-size tutorials that emphasis the manipulative power of this feature rich editor.