1. The Human Microbiome (NP Andreou, M. Gazouli)

2. In silico metagenomics analysis ( N Dovrolis)

3. Gut microbiome and Gastrointestinal Disorders (E Legaki, EA Karanasou, M Gazouli)

4. Gut Microbiome and Cancer (G Theodoropoulos)

5. Gut microbiome, diabetes and obesity: Complex Interplay of Physiology (Ch Stefanaki, G Valsamakis, G Mastorakos)

6. Gut Microbiota in Obesity and Bariatric Surgery: Where do we stand? (K Georgiou)

7. Gut microbiome and mental stress-related disorders: The interplay of microbial endocrinology (Ch Stefanaki, G Mastorakos, GP Chrousos)

8. Chapter 8. The Gut Microbiome in Serious Mental Illnesses (E. O. Tzavellas, M. Logotheti, N. Stefanis)

9. The controversial interplay of gut microbiome and reproductive function in humans (P. Christopoulos, E. Tsarna, E. Domali)

10. Gut microbiome on allergies (S Taka)