G-Cows Manual is under complete reorganization so think twice before printing (please also consider printing on recycled paper).
If you're new to G-Cows you may want to have a look at the manual without downloading it.
Manual formatted in HTML: you can download it as a gzipped tar archive and read with any web browser.
Manual formatted in PostScript and PDF: this is the best choice if you want to print it. Both USA 8.5 by 11 inch and European size A4 paper versions available.
Many examples listed on G-Cows manual are included in this archive so you can avoid typing them from scratch.