A business pitch in short is a presentation. Presentation includes slides that serve as an aid and background, and the verbal discussion that begins as a planned talk and ends with questions and answers. The classic pitch is one delivered by startup founders to potential investors. That same pitch is also used in business classrooms and business plan and venture competitions, in which students and startup founders pitch to judges, who are usually investors.
There are two kinds of slide deck associated with the business pitch. The first and most important is the deck intended for the presentation itself. That’s the one you read about most often. It should be almost entirely images, each slide with its title and an image, but very little text. The images are photographs, business charts, and diagrams. It keeps the focus of attention on the speaker, not the slides. It doesn’t encourage the audience to read text from the slides. It doesn’t have bullet points people will read.
The second kind of pitch deck could be called the leave-behind pitch. It stands alone, to be read, not presented. It should reflect the main presentation and cover the same content. It might even have the same number of slides in the same order as the main presentation; but it has a lot more words because its business purpose requires that.
Don’t confuse the two: A pitch to be read must be very different from a pitch that supports a live presentation with you talking. These require different styles for different business situations.
Most of what you read about business pitches focuses on the pitch deck and pitch presentation startup that founders deliver to potential investors.
In either case, what you want to show is something like this (but be flexible and sensitive to your specific audience and specific business situation; this is just a sample):
Now go find David S. Rose’s TED talk on pitching for investors, Nancy Duarte’s book Resonate, and look up Guy Kawasaki’s The Art of The Pitch.