Here is an (incomplete) list of study groups which I have been helped organise or given talks at:

2021/22 Term 1:

November:
The Bloch-Kato Conjecture (Warwick Maths Postgrad Seminar)
Modular forms on the Bruhat-Tits tree (Warwick Number Theory Group)

2020/21 Term 3:

June: Complex Multiplication for Shimura Varieties (Warwick Number Theory Group)
Notes

2020/21 Term 2:

February: Bloch-Kato Selmer Groups (London Number Theory Study Group)
Notes

March: Brill-Noether Theory (Reading group on Mukai's classification of Fano 3-folds)
Notes

2020/21 Term 2: Modular Forms & Modular Curves

Following Diamond/Shurman (D/S) and Milne's notes

Schedule:

Date	Title	Speaker	References	Notes
22/1	Introduction (Modular forms)	Elvira	Serre (A Course in Arithmetic ch 7)	Week 1 - Introduction to Modular Forms
29/1	Modular curves over C	Ben	Milne ch2, Diamond/Shurman ch 2-3	Week 2 - Modular Forms and Geometry
5/2	Elliptic curves over C and lattices	Diana	Milne ch 3-4	Week 3 - Elliptic Functions
12/2	Hecke operators	Xenia	Milne ch 5, D/S ch 5.1-5.5	Week 4 - Hecke Operators
19/2	Eigenforms and L-functions	Barna	Milne ch 5, D/S ch 5.6-5.11
26/2	Rational models of modular curves	Steven	Milne ch 8, D/S ch 7	Week 6 - Canonical Model of X_0(N)
5/3	Modular curves as moduli spaces	Phillipe	Milne ch 8, D/S ch 1.5 + more	Week 7 - Moduli Spaces
12/3	Reduction mod p	Horatio	D/S ch 8.1-8.4	Week 8 - Reduction mod p
19/3	Eichler-Shimura relation	Muhammad	D/S ch 8.5-8.8, Milne ch 10	Week 9 - Eichler-Shimura Relations
26/3	Bonus talk: Modularity	Chris W		Week 10 - Modularity

2020/21 Term 1:

August: Hilbert Modular Forms (Informal Göttingen Number Theory seminar)
Notes -

November: Local Class Field Theory - Cohomology (Warwick Number Theory Group)
Notes