An Undergraduate Primer in Algebraic Geometry Ciro Ciliberto E-Book (pdf)

Automorphisms in Birational and Affine Geometry Ivan Cheltsov, Ciro Ciliberto, Hubert Flenner E-Book (pdf)

Elementary Number Theory, Cryptography and Codes M. Welleda Baldoni, Ciro Ciliberto, G. M. Piacentini Cattaneo E-Book (pdf)