"España invertebrada: Bosquejo de algunos pensamientos históricos" is a work by the eminent Spanish philosopher José Ortega y Gasset, in which he examines the causes and consequences of the crisis in Spain's historical development. The author analyzes the socio-cultural and political aspects that led to the disorder in Spanish society, and also offers his own vision of ways out of this crisis. The book "Boneless Spain" became a landmark in historical and philosophical literature, bringing its author fame as a deep analyst and thinker.