1. Positivity of Segre-MacPherson classes Paolo Aluffi, Leonardo C. Mihalcea, Joerg Schuermann and Changjian Su; 2. Brill-Noether special cubic fourfolds of discriminant 14 Asher Auel; 3. Automorphism groups of almost homogeneous varieties Michel Brion; 4. Topology of moduli spaces of tropical curves with marked points Melody Chan, Soren Galatius and Sam Payne; 5. Mirror symmetry and smoothing Gorenstein toric affine 3-folds Alessio Corti, Matej Filip and Andrea Petracci; 6. Vertex algebras of CohFT-type Chiara Damiolini, Angela Gibney and Nicola Tarasca; 7. The cone theorem and the vanishing of Chow cohomology Dan Edidin and Ryan Richey; 8. Cayley-Bacharach theorems with excess vanishing Lawrence Ein and Robert Lazarsfeld; 9. Effective divisors on Hurwitz spaces Gavril Farkas; 10. Chow quotients of Grassmannians by diagonal subtori Noah Giansiracusa and Xian Wu; 11. Quantum Kirwan for quantum K-theory E. Gonzalez and C. Woodward; 12. Toric varieties and a generalization of the Springer resolution William Graham; 13. Toric surfaces, linear and quantum codes - secret sharing and decoding Johan P. Hansen; 14. Stability of tangent bundles on smooth toric Picard-rank-2 varieties and surfaces Milena Hering, Benjamin Nill and Hendrik Suess; 15. Tropical cohomology with integral coefficients for analytic spaces Philipp Jell; 16. Schubert polynomials, pipe dreams, equivariant classes, and a co-transition formula Allen Knutson; 17. Positivity certificates via integral representations Khazhgali Kozhasov, Mateusz Michalek and Bernd Sturmfels; 18. On the coproduct in affine Schubert calculus Thomas Lam, Seung Jin Lee and Mark Shimozono; 19. Bost-Connes systems and F1-structures in Grothendieck rings, spectra, and Nori motives Joshua F. Lieber, Yuri I. Manin, and Matilde Marcolli; 20. Nef cycles on some hyperkaehler fourfolds John Christian Ottem; 21. Higher order polar and reciprocal polar loci Ragni Piene; 22. Characteristic classes of symmetric and skew-symmetric degeneracy loci Sutipoj Promtapan and Richard Rimanyi; 23. Equivariant cohomology, Schubert calculus, and edge labeled tableaux Colleen Robichaux, Harshit Yadav and Alexander Yong; 24. Galois groups of composed Schubert problems Frank Sottile, Robert Williams and Li Ying; 25. A K-theoretic Fulton class Richard P. Thomas.