“Microbiome in Health and Disease: From Spatial Ecology and Host-Microbe Interactions to Clinical and Translational Applications” brings together core concepts and current thinking in its subject in depth, the work of Dr. Hefjur Rahaman. Each chapter builds on the last, guiding readers from fundamentals through to more advanced material. Aimed at students, researchers, and academic readers, it is published by Khushbu Publications, New Delhi, India, and released in 2026.