Business Course Four | How To Book Photography Clients: What Is Sales? Pye Jirsa, 4 years ago What Is Sales? How can we use our understanding of sales to change our clients’ perspective of what a salesperson is? Previous Simple Human Needs Next Your Worst Enemy Pye Jirsa Founding Partner of Lin and Jirsa Photography and SLR Lounge. Follow my updates on Facebook and my latest work on Instagram both under username @pyejirsa.