The basics of contract and commercial law in Finland

What are the general principles of the contract law? What are the special characteristics of the main types of contracts in business? What are the consequences of a breach of contract? How can the contractual compensation for damages be determined in contractual relations? How is a binding sales contract made and under what conditions will a contract be invalid? What are the rights and obligations of the seller and buyer in the sale of tangible goods? How do B-to-B and consumer sales differ? How can a business protect its rights? How should intellectual property rights be taken into account in marketing?