Drawn Animation
The Animator’s Survival Kit [Software iOS & Book] ($$$)
Animation Crash Course by Eric Goldberg [Book] ($$$)
If you want to draw characters ‘from the imagination’:
Glenn Vilppu taught 'drawing from the imagination' for animation at Warner Brothers Studio.
1. Vilppu Drawing Online: Gesture [Web] (FREE)
2. Vilppu Drawing Online: Spherical Forms [Web] (FREE)
3. Vilppu Drawing Online: The Box [Web] (FREE)
4. Vilppu Drawing Online: Introducing Material and Proportion [Web] (FREE)
5. Vilppu Drawing Online: Drawing Ellipses [Web] (FREE)
6. Vilppu Drawing Online: From the General to the Specific [Web] (FREE)
7. Vilppu Drawing Online: The Landmarks of Anatomy [Web] (FREE)
8. Vilppu Drawing Online: Seeing Anatomical Masses [Web] (FREE)
Vilppu Index [Web] (FREE)
Vilppu Index 2 [Web] (FREE)
Software
Animation Paper [Software Win mac Linux] ($$$)
OpenToonz [Software Win mac] (FREE) (OSS)
Procreate Dreams [Software iOS] ($$$)
Apple Pnencil 2 has advantages over version 3
Hardware
XPPen Display Tablets [Hardware] ($$$)Wacom [Hardware] ($$$) drawing pen tablet Intuos Medium, bigger isn't better.