Basic tasks for creating a PowerPoint presentation - https://support.microsoft.com/en-gb/office/basic-tasks-for-creating-a-powerpoint-presentation-efbbc1cd-c5f1-4264-b48e-c8a7b0334e36
Create a presentation in PowerPoint - https://support.microsoft.com/en-gb/office/create-a-presentation-in-powerpoint-422250f8-5721-4cea-92cc-202fa7b89617
PowerPoint for Windows training - https://support.microsoft.com/en-gb/office/powerpoint-for-windows-training-40e8c930-cb0b-40d8-82c4-bd53d3398787