- Gordon D. Plotkin, Colin Stirling, Mads Tofte, editors, Proof, Language, and Interaction, Essays in Honour of Robin Milner. The MIT Press, 2000.
- László Böszörményi, Jürg Gutknecht, Gustav Pomberger, editors, The School of Niklaus Wirth, The Art of Simplicity . dpunkt.verlag/Copublication with Morgan-Kaufmann, 2000.
- Carlos Martín-Vide, Gheorghe Paun, editors, Recent Topics in Mathematical and Computational Linguistics, Papers in Honor of Solomon Marcus on the Occasion of his 75th Birthday. Editura Academiei Româe, Bucuresti, 2000.
- Steffen Hölldobler, editor, Intellectics and Computational Logic (to Wolfgang Bibel on the occasion of his 60th birthday). Volume 19 of Applied Logic Series, Kluwer, 2000.