Animated GIFs in Photoshop

Here are a few resources that outline the GIF-Making process from development to production to optimization.

Simple GIF Animation - Photoshop Tutorial by Zimri Mayfield (above)
This is a fantastic walk through of the "Timeline" feature in Adobe Photoshop

The Ultimate Guide to GIF Design by Creative Bloq
Some great tips and resources for designing and producing GIFs.

7 TIPS FOR DESIGNING AWESOME ANIMATED GIFS by InVision
Here are a few more tips to consider, plus some apps and tools.

34 GIF tips: illustrators reveal techniques for creating amazing animated GIFs by Digital Arts
Several illustrators walk through their process creating GIFs.

How to Create an Animated GIF in Photoshop | Adobe Creative Cloud
This  quick overview from Adobe shows the basic process for producing a GIF in Photoshop.

Learn How to Animate and Export GIFs in Adobe Photoshop | Dansky
Here is a more in-depth walk through on creating GIFs.

Photoshop Tutorial - Creating GIFs in Photoshop & Best GIF Optimization Techniques
This is a fantastic and comprehensive look at using Save for Web in Photoshop to optimize GIFs.