Could be a Black and Yellow garden spider, common the US west coast.
a black widow!
Most probably a poisonous one?
it is black light brown and hair............
Argiope aurantia Lucas - yellow garden spider
Phidippus audax
An Arrowhead spider is brown with a green back. This spider is also known as a Triangle Orb Weaver. This spider is not venomous.
A Lol Spider? xD
scorpion
A book worm or a huge hairy spider.
Easy, a yellow hair-legged spider.
This is most likely a "jumping spider" and can be confirmed if it has squat legs, a stocky fuzzy body, somewhat twitchy behavior and, well, jumps. That would be your first clue.
The brown recluse spider is the kind of spider that has a brown oval mark on its back. This spider's bite is extremely deadly to animals and humans.
The spider that is black with a white crescent on its back is the Brown House Spider. This spider is often confused with the red-back spider.