Ensaio Sobre a Inconstitucionalidade Das Leis No Direito Português

''Ensaio sobre a inconstitucionalidade das leis no direito português'' by João Maria Tello de Magalhães Collaço is a scholarly treatise written in the early 20th century. The work explores the concept of the unconstitutionality of laws within Portuguese law, offering an examination of the principles established by the Constitution and their implications for the legislative processes. It aims to assess the relationship between the sovereignty of the Parliament and the constitutional norms that govern legal validity. The opening of the book sets the stage for a discussion on the relevance of the issue of unconstitutionality in contemporary public law. The author introduces the argument that the Constitution's acknowledgment of judicial review makes it crucial to explore how this principle has evolved historically within Portugal, particularly contrasting with absolutist regimes. Collaço indicates that the work, while not exhaustive, seeks to appreciate the national perspective on constitutional law and introduces the first chapter with a brief overview of the notion of fundamental laws from the monarchy's inception to the establishment of constitutional regimes.