What basic knowledge should I learn first to enter the patent agency industry?

legal knowledge

Specifically, it includes relevant legal knowledge (civil law, civil litigation, litigation, contracts, trademarks, copyrights, plant varieties, layout of integrated circuits, and anti-unfair competition) and patent legal knowledge (from coarse to fine: patent law, implementation rules, and review guide). A guide to the patent agent qualification examination is issued every year. After buying this, all the above knowledge is included.