Two very nice Swedish wood carving axes compared in a review: one by Julia Kalthoff and one by Hans Karlsson.
Tools
Articles, blogs and reviews about the tools you need for spooncarving: axes, knives and spoon knives.
What tools for spoon carving?
Saw, axe, knife, spoon knife. What tools to get for carving a wooden spoon? An overview of the basic tools for spooncarving.