M1     Nucleic acids, proteins – structures, interactions
M2     Room temperature and serial crystallography and dynamics
M3     Software developments in MX and Cryo-EM including AI / Machine Learning
M4     Infectious and neglected diseases
M5     Structural studies in enzymology
M6     Fragment screening and structural based drug discovery
M7     Electron diffraction of macromolecules
M8     Cross-method structural studies
M9     The new role of experiments in the age of protein fold prediction
M10   Structure-property relationships in materials
M11   Molecular structures with material properties
M12   Materials for energy storage and conversion 
M13   Intermetallic compounds and derivatives
M14   From crystal structure to magnetic structure
M15   Inorganic crystal structure investigation using electron diffraction
M16   Crystallography of minerals in the Universe
M17   Crystallographic methods to rescue natural and cultural heritage
M18   Novel advances in quantum crystallography
M19   Quantum mechanical models for disorder, dynamics, and diffuse scattering
M20   Aperiodic order and complex superstructures
M21   Surfaces, interfaces and ultrathin films
M22   Short-range order as seen by different techniques
M23   Dynamics and disorder in complex systems and/or under extreme conditions
M24   Disordered and defective molecular systems, effect on chemical properties
M25   Supramolecular interactions behind crystal engineering
M26   The complex world of multicomponent crystals
M27   Insight into the crystal: crystal forms, isostructurality, symmetry, chirality
M28   Molecular structure and chemical bonding
M29   Impact of non-covalent interactions on dynamics in molecular crystals
M30   Polymorphism and phase transitions
M31   Crystallography in the world of mechanochemistry
M32   Designing the void: structural mastery in advanced porous materials
M33   Nucleation and crystal growth
M34   AI in crystallography
M35   Challenges of light sources, neutrons and XFEL
M36   In situ and in operando diffraction; time-resolved techniques
M37   Advanced and new techniques to study inorganic materials
M38   Powder diffraction on organic compounds
M39   Crystallography at high pressure
M40   New developments in electron diffraction
M41   Total scattering and Pair Distribution Function analysis
M42   Quantum mechanics and computational chemistry-based methods of crystallography
M43   Simulating and predicting structure
M44   Comparing crystal structures in massive datasets
M45   How to… successfully apply for funding
M46   Publishing crystallography
M47   Exploiting crystallographic databases in solving, refining, and validating crystal structures
M48   Potential of online courses in crystallography