**Slides and presentations**

· Slides of the seminar «Descriptive set theory and classification problems», given in Lyon in 2008.

· Slides of the talk «Quotients of projective Fraďssé limits», given at the meeting Descriptive set theory in Paris 2008.

· Slides of the talk «Standard universal dendrites as small Polish structures», given at the ESI workshop on large cardinals and descriptive set theory (Vienna 2009).

· Slides of the talk «The descriptive set theory of the Lebesgue density theorem», given at the Third European set theory conference (Edinburgh 2011). This is a joint work with A. Andretta.

· Slides of the talk «Epimorphisms between linear orders», given at the XXV AILA meeting (Pisa 2014). This is a joint work with R. Carroy and A. Marcone.

· Slides of the talk «Strongly surjective linear orders», given at the *Algebra and literature* meeting (Florence 2014).
This is a joint work with R. Carroy and A. Marcone.

· Slides from the «Set theory» course at the Summer school of logic (Gargnano 2014): lectures 1 and 2, lectures 3 through 6.
Main bibliographic references: K. Kunen's **The Foundations of mathematics** (2009) and **Set theory** (2011).

· Slides from the «Descriptive set theory» course given at the Second university of Naples (Caserta 2014): lectures 1 through 3, lecture 4.
Main bibliographic references: A.S. Kechris' **Classical descriptive set theory** (1995) and S. Gao's **Invariant descriptive set theory** (2009).

· Slides of the talk «Well quasi-orders, better quasi-orders, and classification problems in descriptive set theory», given at the workshop *Well-quasi orders: from theory to applications* (Hamburg 2015).

· Slides of the talk «Lebesgue density and exceptional points», given at the meeting Descriptive set theory in Paris 2015. This is a joint work with A. Andretta and C. Costantini.

· Slides of two seminars given at the University of Milan - Bicocca (2016): 1. «Logic calculi», 2. «Set theory».

· Slides of the seminar «The density function: some remarks, results, and open problems», given at the Kurt Gödel Research Center of the University of Vienna in 2017. This is a joint work with A. Andretta and C. Costantini.

· Slides of the talk «Wadge hierarchies versus generalised Wadge hierarchies», given at the Set theory workshop in Pisa, 2017.

· Slides of the talk «Wadge hierarchies versus generalised Wadge hierarchies», given at the XXVI AILA meeting (Padua 2017).

· Slides of the seminar «Complexity in set theory (and beyond)», given at the Department of mathematics of the University of Genoa in 2017.

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