"The book helps in exploring the diverse microbial partners, its importance's and mechanisms of the actions for proper understanding of the topic. ... we enjoyed reading this book as the editor tried to cover almost all fundamental and applied aspects of the plant-microbe interactions. As a final word, the book can be described as a book for all." (Rama K. Dubey, Vishal Tripathi and P. C. Abhilash, Frontiers in Plant Science, Vol. 6, 2015)