1. Introduction to Astrochemical Modeling

Part I: Chemistry
2. Designing a Gas-Phase Chemical Network
3. Time-Dependent Integration of Chemical Networks
4. Dust and Surface Chemistry
5. Integrating Astrochemistry in Hydrodynamics

Part II: Radiation and cosmic rays
6. Optically Thin Atomic Photochemistry
7. Molecules and Radiation Shielding
8. Dust-Radiation (Attenuation and Other)
9. Cosmic Rays: Physics, Chemistry, and Computational Challenges

Part III: Thermal processes
10. Implementing Cooling and Heating I: Atomic Gas
11. Implementing Cooling and Heating II: Molecular Gas
12. Implementing Cooling and Heating III: Dust Grains

Part IV: Beyond the essentials
13. Extra Complexity
14. Synthetic Observations: Bridge the Gap Theory-Observations

Part VI: Case studies
15. Modelling large scales: galaxy and molecular clouds
16. Modelling small scales: star-formation in filaments, clumps, cores
17. Modelling radiation and chemistry in protostellar environments
18. The challenge: modelling protoplanetary discs
19. Cosmological simulations first stars and SMBHs
20. Conclusions and future perspectives