Jakub Linowski, UI designer from Toronto, Canada, is used to be working for the bigger brands. He obviously possesses knowledge not only in the field of webdesign craftsmanship but also in the field of marketing. The latter is what he conveys through his side project GoodUI.org. If you are a web designer interested in maximum conversion aka massive sales, you should definitely care for obeying what Linowski teaches you. Not each and every tip will be a fit to every project, though. Just as it is in real life, if the shoe fits, wear it. If not, don't...