Thanks! I appreciate everyone’s input. I was hoping to get a selection of books through interlibrary loan before purchasing one, but my university shut that down on Monday.
Some of the books mentioned above are freely downloadable. Let me mention another resource – my own lab’s free population genetics simulation program PopG, a Java program that shows outcomes for multiple replicates of evolution of a single locus with two alleles under mutation, natural selection, migration, and genetic drift.