Our plenary speaker this year is John Voight from Dartmouth: https://math.dartmouth.edu/~jvoight/
John is an international leader in number theory, including areas such as quaternion algebras and computational number theory. He is also known for being a particularly outstanding expositor. I personally learn so much (joyfully) every time I see him present. He will be giving two plenary talks.
Our postdoctoral speaker this year is Piper H from Hawaii:
https://www.theliberatedmathematician.com/
Piper will be giving two shorter talks, one mathematical talk about number theory, and a second more personal talk about becoming a liberated mathematician.