Dear StefaniaBlds, I am a native Portuguese speaker, I have a Master Degree in Languages, Literature and Cultures, and a vast experience as a translator (websites, legal and technical documents, articles, eBooks, books, you name it). Being mandatory to be an impeccable proofreader too, I can give you a human and flawless translation of your workbook about marketing & business (regarding proper punctuation, without any misspellings and syntax errors, and with correct grammar and adequate vocabulary), from English into Portuguese. Please, see my private message for more details and work samples. Thank you. Grateful in advance for your availability, Vítor Cortes