I’ve known Helena and Isabella since 2011 when I started my doctoral studies at the University of Salzburg in Austria. They have edited several of my scientific publications including the framework text my PhD thesis. As a non-native English speaker, their revisions were highly important for my work. They are punctual, perfectionists and always tried to help me improve my regular grammatical or syntactical errors. I believe that I have improved my writing with their help and I have never had a language related- issue in any of my published research studies. Apart from my personal experience, I know that Helena and Isabella provided their editing services for several years in our department with great success. Also, they were giving presentation and writing courses to new doctoral students. I truly trust and respect their work.