This document discusses various consumer protection laws in New Zealand related to contracts, sales, and fair trading practices. It covers the Law of Contract, Layby Sales Act, Unsolicited Goods and Services Act, Commerce Act, Fair Trading Act, Credit Contracts and Consumer Finance Act, and Consumer Guarantees Act. Key points include that contracts must have an offer, acceptance, and consideration; layby sales allow purchase of goods by installment payments; unsolicited goods sent remain the property of the sender unless accepted; and the Fair Trading Act prohibits misleading practices and requires guarantees on goods and services.