Jigs and Jigging are not the same. Jig fishing is s particular style of offering. Jigs are a lead-headed offering that sinks to the substrate where fish hold.
Corkies are an artificial and natural bait that works well for fishing rivers. Yarn is used to hold scent. The corky is round and imitates eggs.
Spinners have blades that make sound and flash upon retrieval. They come with single and treble hooks. Rules vary by location.