Spatial biology is revolutionising our understanding of cellular organisation and disease by preserving the interactions between cells within tissues. Traditional methods often disrupted these delicate structures, making it challenging to study cells in their natural environments. This article explores key technologies, such as immunohistochemistry (IHC) and in situ hybridisation, which enable precise molecular analysis while maintaining spatial context. IHC remains essential for identifying protein markers in pathology, while multiplex imaging systems significantly enhance biomarker detection and high-throughput spatial profiling. Additionally, new computational tools like MuSpAn are advancing our understanding of spatial cell organisation. Despite challenges posed by data complexity, spatial biology opens exciting new possibilities for precision medicine, facilitating targeted therapies and advancing personalised treatment strategies. As the field rapidly evolves, it continues to drive groundbreaking breakthroughs in disease research and therapeutic development.