noun
Refers to a person or entity that buys something, often contrasted with 売り方 (seller).
See also: 売り方
買い方と売り方の意見が合わなかった。
The buyer and the seller didn't agree.
noun
method of buying; how to buy
Refers to the way or procedure of purchasing something, such as online vs. in-store.
See also: 売り方
この商品の買い方を教えてください。
Please tell me how to buy this product.
売り方 means 'seller' or 'method of selling', the opposite of 買い方.
Compound of 買い (kai, 'buying', continuative form of 買う) + 方 (kata, 'way' or 'person'). The 'person' sense likely developed from the 'way of buying' sense, referring to the party that does the buying.