“Microbiome in Health and Disease: From Dysbiosis and Host-Microbe Crosstalk to Clinical Diagnostics and Therapeutic Modulation” brings together core concepts and current thinking in its subject in depth, the work of Dr. Senguttuvel P. 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.