In the work "Frustration and Force Majeure in the Civil Code and Cypriot Law," the author endeavors to analyze cases where cancellation and termination do not arise from the contract itself but occur outside of it, when an unexpected and serious event causes the frustration (i.e., the cancellation) of the contract from the moment the specific event occurs, regardless of the subjective intentions of the parties. A related issue is the principle of force majeure, whose origin and operation differ significantly from the principle of frustration, although the effects of invoking it present notable similarities to those of frustration. The principle of force majeure, at least in civil law, is usually incorporated into contractual provisions that are activated upon the occurrence of an event or condition that substantially alters, in practice, the usual obligations of the parties. The book includes, among other things, a historical overview of the principle of frustration, contemporary approaches and developments of the principle, comparative legal issues between civil law and common law systems, and specific topics such as frustration in real estate leases, employment contracts, mistake, the Suez Canal, Cypriot law, the United States, and others. Finally, the analysis in the book makes it clear that there is a distinction between frustration resulting from events and situations outside the contract (which undermine its purpose and eliminate its actual or commercial object and/or background) and the principle of force majeure, which constitutes part of the contract (and represents the agreed-upon response of the parties to serious events and situations occurring outside the contract).