This is term (with perhaps origins in Silicon Valley) which refers to the presentation slides (i.e. PowerPoint or Keynote). It is also known as just. A good slide deck is often the price of entry for serious consideration by today's buyers. Shabby slide decks reflect poorly on you, your company. It's essential to have a well-thought-out slide deck before facing not only customers but also investors, who are the ones that will help you.