Marketo functional overview presentation

Hello Community

as a Marketo consultant I often come across clients, typically in a role of Marketing director, who would like to see a presentation of "What Marketo can do for them". Do you know if there is a publicly available presentation, ideally about 30 minute long, high level overview that would describe functions and benefits, something less abstract than "Empower your digital transformation" but more palatable than the feature data sheet.

I would be grateful for any suggestions or links.