Foreword; Part I. Hemodynamic Monitoring in the Perioperative Period: 1. Overview of the circulation Michael R. Pinsky; 2. Invasive and semi-invasive hemodynamic monitoring Antonio Messina, Giulia Lionetti and Maurizio Cecconi; 3. Non-invasive blood pressure monitoring Karim Lakhal and Jerome E. Dauvergne; 4. Microcirculation and mitochondrial dysfunction Daniel de Backer and Diego Orbegozo Cortes; 5. Cerebral oxymetry D. Massari, I. N. de Keijzer, J. J. Vos and T. W. L. Scheeren; Part II. Basic Science & Concepts in Fluid Therapy: 6. Body volumes and fluid kinetics Robert G. Hahn; 7. Crystalloid fluids Robert G. Hahn; 8. Colloid fluids Robert G. Hahn; 9. The role of plasmatic viscosity Pedro Cabrales, Amy G. Tsai, Judith Martini and Marcos Intaglietta; 10. Acid-Base Issues in fluid therapy Niels Van Regenmortel, Wouter Rosseels, Paul WG Elbers; Part III. Practical Use: 11. Outcome and organ dysfunction after major surgery Eryn R. Thiele, Chelsea A. Patry, Susan M. Walters and Amanda M. Kleiman; 12. Perioperative goal-directed hemodynamic therapy Sean Coeckelenbergh, Brenton Alexander, Maxime Cannesson and Alexandre Joosten; 13. Fluid Responsiveness assessment Antonio Messina, Lorenzo Calabro and Maurizio Cecconi; 14. Intra-abdominal surgery Birgitte Brandstrup; 15. Fluid and hemodynamic monitoring in pulmonary surgery Mert Senturk, Achmet Ali, Zerrin Sungur and Emre Sertac Bingul; 16. Fluid management in cardiac surgery Saqib H Qureshi, Metesh N. Acharya and Giovanni Mariscalco; 17. Fluid and hemodynamic monitoring in brain surgery Indu Kapoor, Charu Mahajan and Hemanshu Prabhakar; 18. Fluid and hemodynamic monitoring in trauma Marie Werner, Sean Coeckelenbergh and Anatole Harrois; 19. Fluid and hemodynamic monitoring in pediatrics Robert Sumpelmann and Nils Dennhardt; 20. Fluid therapy for liver and renal transplantation Laurence Weinberg; 21. Fluid and hemodynamic monitoring in burns Emmanuel Dudoignon, Francois Depret, Benjamin Deniau and Matthieu Legrand; Part IV. Futures Directions: 22. Optimizing hemodynamic therapy by monitoring microcirculation: one step forward in matching tissue oxygen delivery to consumption Sean Coeckelenbergh, Hiromi Kato, Salima Naili and Jacques Duranteau; 23. Predictive analytics and artificial intelligence Jack E. Brooker and Kamal Maheshwari; 24. Clinical decision support and closed-loop systems for goal-directed hemodynamic therapy Sean Coeckelenbergh, Joseph Rinehart, Maxime Cannesson and Alexandre Joosten; 25. Postoperative surveillance: the rise of wireless sensors, pocket ultrasound devices and AI-enabled tools Frederic Michard; 26. Can perfusion index be useful for fluid and hemodynamic management? Maxime Coutrot, Emmanuel Dudoignon, Benjamin Deniau and Francois Depret.