The Azimuth Project
Topos

References

• Olivia Caramello?, Grothendieck toposes as unifying bridges in Mathematics?, habilitation thesis, 2016. PDF

The first part of this book gives a review of some topos theory as well as some enriched category theory:

• Ivan Tomašić, A topos-theoretic view of difference algebra, 2020. arXiv:2001.09075