<p>1. Introduction to QTAIM and beyond<br>Fernando Cortés-Guzmán, Juan I. Rodríguez, and James S. M. Anderson<br>2. An Introduction to Quantum Chemistry<br>David C. Thompson and Juan I. Rodríguez<br>3. New high performance QTAIM algorithms: From organic photovoltaics to catalyst materials<br>Juan I. Rodríguez, Héctor Daniel Morales-Rodríguez, Emiliano Dorantes-Hernández and Omar A. Alvarez-Gonzaga<br>4. Structural and Bond Evolutions During a Chemical Reaction<br>Pablo Carpio-Martínez and Fernando Cortés-Guzmán<br>5. The MC-QTAIM: A framework for extending the "atoms in molecules" analysis beyond purely electronic systems<br>Shant Shahbazian<br>6. Theory Developments and Applications of Next Generation QTAIM (NG-QTAIM)<br>Xing Nie, Yong Yang, Tianlv Xu, Steven R. Kirk, and Samantha Jenkins<br>7. Real-Space Description of Molecular Processes in Electronic Excited States<br>Jesús Jara-Cortés and Jesús Hernández-Trujillo<br>8. Open Quantum Systems, Electron Distribution Functions, Fragment Natural Orbitals and the Quantum Theory of Atoms in Molecules<br>Evelio Francisco, Aurora Costales and Angel Martin Pendas<br>9. The Ehrenfest Force<br>Yoshio Barrera, Airi Kawasaki, Paul W. Ayers and James S. M. Anderson<br>10. Relativistic QTAIM<br>James S. M. Anderson<br>11. Chemical insights from the Source Function reconstruction of various scalar fields relevant to Chemistry <br>Carlo Gatti and Giovanna Bruno<br>12. Scalar and vector fields derived from magnetically induced current density <br>José E. Barquera-Lozada<br>13. Gradient Bundles <br>Amanda Morgenstern<br>14. Nonnuclear Maxima in the Molecular Electron Density<br>James S. M. Anderson, Aldo de Jesus Mortera-Carbonell and Chérif F. Matta<br>15. Spin Polarization of the Atomic Valence Shell in Metal Complexes.<br>David I. Ramírez-Palma, Ricardo Almada-Monter, Eduardo Orozco-Valdespino, Rosa María Gómez-Espinosa and Fernando Cortés-Guzmán <br>16. A Bond Bundle Case Study of Diels-Alder Catalysis and Selectivity Using Oriented Electric Fields <br>Timothy R. Wilson and M. E. Eberhart<br>17. Applications of the Quantum Theory of Atoms in Molecules and the Interacting Quantum Atoms Methods to the Study of Hydrogen Bonds<br>José Manuel Guevara-Vela, Alberto Fernández-Alarcón and Tomás Rocha-Rinza<br>18. Recent advances on halogen bonds within the quantum theory of atoms in molecules<br>Vincent Tognetti and Laurent Joubert<br>19. The Non-Covalent Interactions index: from biology to chemical reactivity and solid-state<br>Bruno Landeros-Rivera and Julia Contreras-García<br>20. Photochemistry: a topological perspective<br>Ismael Vargas-Rodriguez and Marco García-Revilla</p>