The document outlines 10 skills that are important for marketers to learn but are often not taught in marketing schools. These include giving and receiving creative feedback, using Excel functions like Vlookup, understanding the history of advertising pioneers, managing expectations with supervisors, performing basic calculations with fractions and percentages, project management skills, storytelling abilities, negotiation skills, visual communication through sketching and mapping, and having endurance as marketing is a marathon rather than a sprint. The document encourages marketers to be voracious students of their trade and to build a thick skin.