This academic resource introduces planned obsolescence as a business strategy based on the design o planning, projection and control of (he usefuI lifetime of numerous products in order to boost demand and stimulate consurnption, encouraging individuals to purchase after the loss of functionality of its assets or its expiration. It also examines the most sígnificant cases that have led such a strategy: from inception to the present day. with a focus on the technology sector. In addition, it considers the attributes that make up the strategy of built-in obsolescence relevant for law. and also those that provide juridical relevance from different perspectives. relating to constitutional law, contractual theory, consumer protection law. antitrust law. prívate and public international law perspectives human rights and European Union Law.