"Ashura Encyclopedia" is a comprehensive reference work that delves into the historical, spiritual, and cultural significance of Ashura, the 10th day of Muharram, which marks the martyrdom of Imam Hussain (A.S.) and his companions at Karbala. This encyclopedic volume provides detailed entries on key figures, events, places, and concepts associated with the tragedy of Karbala, offering readers a holistic understanding of this pivotal moment in Islamic history. The book explores the values of justice, sacrifice, and unwavering faith embodied by Imam Hussain (A.S.) and his companions, while also examining the enduring legacy of Ashura in Islamic spirituality, rituals, and cultural practices. Designed as a resource for students, scholars, and general readers, "Ashura Encyclopedia" combines historical accuracy with deep spiritual reflection, making it an essential tool for anyone seeking to understand the profound lessons of Karbala.