Social media image sizes in development.

A good approach to social media development is the study of international web sites and the way they are built.
Today I will present you a collection of information that will complete the design palette and the graphics: Social media image sizes.
Here's how these are shown in the following tables:

Cover photo/header image:

Social site	Image size
Twitter	1500px x 500px
Facebook	820px x 312px
Pinterest	222px x 150px (Board Cover image)
LinkedIn	1584px x 396px (Background or Cover image)
LinkedIn	1536px x 768px (Business Cover image)
YouTube	Display varies by device; 2560px x 1440px on desktop
Tumblr	3000px x 1055px
Medium	1500px x 750px

The profile size:

Social site	Image size
Twitter profile picture size	400px x 400px
Facebook profile picture size	800px x 800px (recommended) 170px x 170px (display size)
Instagram profile picture size	110px x 110px (min.)
Pinterest profile picture size	165px X 165px
LinkedIn profile picture size	400px x 400px
YouTube profile picture size	800px x 800px**
Medium profile picture size	60px x 60px (publication avatar) 72px x 600px (max.) (logo image)
Tumblr profile picture size	128px x 128px

Shared image sizes:

Social site	Image size
900px x 450px
Facebook	1200px x 630px
Instagram	1080px x 1080px
Pinterest	236px x scaled height (Expanded Pin)
LinkedIn	1200px x 628px (Personal Profile)
LinkedIn	1200px x 1200px (Company Page)
YouTube	16:9 aspect ratio (Video); to qualify for HD: 3840px x 2160px
Medium	1000px wide by any height
Tumblr	540px x 810px

Shared link graphic sizes

Social site	Image size
Twitter	800px x 320px
Facebook	1200px x 630px
Instagram	110px x 110px (Photo Thumbnails)
Pinterest	735px x 1102px (Pin Preview); 600px x 600px (Board Display)
LinkedIn	180px x 110px
YouTube	1280px x 720px (Custom Video Thumbnail)
Medium	Will pull story header or profile image