Book Recommendation for Integer partitions and $q$ series I have been studying number theory for a little while now, and I would like to learn about integer partitions and $q$ series, but I have never studied anything in the field of combinatorics, so are there any prerequisites or things I should be familiar with before I try to study the latter?

For a more difficult introduction
to some of the real magic of $q$-series,
try
"Number Theory in the Spirit
of Ramanujan"
by Bruce C. Berndt.
Even if you don't understand the proofs
(my condition for much of it),
the theorems are amazing.
