1 – How to change the image size in Photoshop – Video(https://helpx.adobe.com/photoshop/how-to/image-resizing-basics.html?playlist=/ccx/v1/collection/product/photoshop/segment/designer/explevel/beginner/applaunch/ccl-get-started-1/collection.ccx.js?ref=helpx.adobe.com) 2 – General knowledge Photoshop most popular and needed stuff(https://helpx.adobe.com/photoshop/tutorials.html) 3 – Export and resize photos to JPG from Lightroom – Video(https://helpx.adobe.com/lightroom/how-to/lightroom-save-as-jpeg.html) 4 – Lightroom Classic CC Tutorials(https://helpx.adobe.com/lightroom/tutorials.html)