For all you who are looking for this year’s standard industry tools, we’ve prepared a list of topics you should investigate.

https://dev.to/techglobex/how-to-be-on-top-of-the-web-development-game-in-2020-16kj

Is the workflow between designers and developers broken for UI components? And will it be better in 2020?

https://dev.to/giteden/ui-design-system-and-component-library-where-things-break-4n1d

These links will make it easier for you to navigate to the specific social media image sizes per network:

https://sproutsocial.com/insights/social-media-image-sizes-guide/?amp

Get in-depth information and UI resources for designing great apps that integrate seamlessly with Apple platforms

https://developer.apple.com/design/human-interface-guidelines/

A visual guide to CSS Flexbox in 2019

http://www.freecodecamp.org/news/do-you-even-flex-box-c16449cfca96/amp/

An understanding of CSS Writing Modes is useful if you want to work with vertical scripts, or change writing mode for creative reasons. However, they also underpin our new layout methods, and those ideas are increasingly being applied across all of CSS.
https://www.smashingmagazine.com/2019/08/writing-modes-layout/