This document discusses various types of contracts under Philippine law. It begins by explaining that creditors have the right to challenge contracts made by debtors with the intent to defraud creditors. It then discusses how third parties who induce another to violate a contract can be held liable for damages. It provides an example case where a third party was found liable for interfering with a film rental contract. The document also explains how contracts are perfected through consent alone for consensual contracts, but require delivery for real contracts like deposits, pledges and loans. It clarifies that agreements to enter into future real contracts are initially consensual contracts. Finally, it discusses the rules around contracting on behalf of others.