Learn Sharepoint in 30 minutes | Microsoft Sharepoint training | Sharepoint working explained

Office 365 Tutorial - INTRODUCTION

Introduction to SharePoint

Getting started with Site Designs in SharePoint Online

SharePoint Communication Sites: How to build a site in under 10 minutes

Using Microsoft's SharePoint Online to Create an Intranet Site

SharePoint framework tutorial: Set up your development environment and Create web part using SPFx

Set up your SharePoint Framework (SPFx) development environment

Getting Started with SharePoint Framework with SPFx Toolkit