6 Simple, Proven Methods to Improve Your Sales Skills Selling is becoming more difficult every year. In this guide, we’ll show you six proven and surprising methods that are helping sales professionals improve their sales skills. Previous Article I Started 2 Companies During Recessions: Here Are 4 Tips For Scaling Your Startup During a Downturn Next Article Angelina Jolie Says Brad Pitt Tried To 'Seize Control' of Co-Run Business In New $250 Million Suit