The research publication ‘Unknown Brutalism Architecture in Hong Kong’ was launched at Hong Kong Book Fair 2023. Built upon their ongoing research on Brutalism architecture in Hong Kong from 2020, this book introduces 20 Hong Kong brutalist architecture projects and 12 architect’s stories, whose avant-garde designs bring an international touch to the local landscape, simultaneously reflecting the simple and unpretentious spirit of their contemporary audience. From the 1960s to the 1980s, Hong Kong’s post war development initiated the city’s synchronisation with the rest of the world. Advocating the concept of “As Found”, the case studies covered in the book highlight key features including pursuing the use of raw materials, designing for the current situation, and allowing the architecture to present the most objective reality. The three years long research project aims to fill in the historical gaps, open up discussions, and raise the local and international awareness of the “unknown” side of brutalism architecture in Hong Kong.