Atty. Maria Liza A. LopezRosario's audio lecture on the Law on Obligations and Contracts. This audio lecture is edited by the content creator, separating each topic and removing long pauses, etc., for the law students, bar candidates, and anyone interested in studying the law, to be used as an aid in their studies.

Topics discussed:
0:00 Definition of Contract
2:48 Stages in the Formation of a Contract
13:54 Classification of Contracts According to Perfection
26:00 Classification of Contracts According to Importance
27:09 Classification of Contracts According to Parties Obligated
28:50 Classification of Contracts According to Equivalence of Prestation
30:19 Principles Applicable in Contracts