This webinar presents an overview of Landlab 2.0, a Python programming toolkit for rapidly building and exploring numerical models of various Earth-surface processes. We’ll look at how to set up a numerical grid in just a few lines of code, and how to populate your grid with fields of data. We will also take a look at some of Landlab’s numerical functions, input-output utilities, and plotting routines. Finally, we will explore Landlab components: what they are, how to assemble them into integrated numerical models, and how to create new ones. Examples include surface-water hydrology, landscape evolution, tidal-marsh flow, and lithosphere flexure, among others.