Hello! A while ago IÂ´ve interpreted the Super Model worksheet, developed by Martin Zweig and described in his book, Winning on Wall Street. As time passed, IÂ´ve improved it visually and functionaly and also included short descriptions of every indicator directly from his book. Every single paragraph is accompanied with credit to its author - something like this: [Martin Zweig, Winning on Wall Street, page xx]. If I publish the newly designed Excel spreadsheet, with comments included, would I violate the copyrights of the publisher? There are also no special copyright notices in the book. IÂ´m not quite sure, that is why IÂ´m asking this. As far as I know, untill you publish the source and the author, itÂ´s OK to use the text. Or am I mistaking myself?