Awesome cycle diagram for presentations that can be used in process description or Lean Startup projects. This free business template for PowerPoint contains a circular diagram to describe the Business Growth with four 3D spheres and captions.

Simple timeline for project planning that you can use in your presentations. This is a free timeline template for PowerPoint that is also suitable for Lean Startup projects and Project Planning in general.

This is an original slide design for PowerPoint & Keynote that you can use to make presentations on Lean Startup. The slide contains a nice Lean Startup process diagram over a blurred photography.

This is another free Lean Canvas for PowerPoint that you can use while designing Lean Startup presentations or following the methodology. This can also be useful for product/fit and presentations on business models or startups.

This is a simple but effective Business Model Canvas based on Alex Osterwalder's Business Model Canvas. You can download this template for Microsoft PowerPoint & Keynote for presentations.