Chap 1: Inspired by nature Chap 2: Conditions for magma vesiculation Chap 3: Mechanism of bubble formation Chap 4: Growth and expansion of bubbles Chap 5: Temporal development of vesiculation Chap 6: Other bubble-related processes Chap 7: Cooling crystallization of magma Chap 8: Crystallization induced by vesiculation Chap 9: CSD (Crystal Size Distribution) Chap 10: Application Chap 11: Appendix