What might be a “tutorial,” but technically is not.
Animations can be made very quickly with Photoshop® and ImageMagick. On subsequent pages I do this by converting the layered psd file to a gif. If you have a gluttony for tedium, you could also export each frame individually, the process is only slightly different.
We’ll pretend newer versions of Photoshop which have animation features don’t exist, it’ll be more fun that way.