- Shi arrangements in Coxeter groups
- Artin-Tits groups, Coxeter groups and Shi arrangements
- Limit root systems and imaginary cones in Coxeter groups
- Words and roots in infinite Coxeter groups (three hours lectures given at the 72nd Séminaire Lotharingien de combinatoire – 2014)
- Permutahedra and generalized associahedra (2009)
- The Solomon descent algebra (2005)
