This Dryad package contains data from: Thor Veen and Sarah P. Otto. Liking the good guys: Amplifying local adaptation via the evolution of condition-dependent mate choice. Journal of Evolutionary Biology. This package consists of a Mathematica 8.0.4 workbook titled ÒVeen and Otto Mathematica Workbook.nbÓ describing the model and analyses. Contact Sarah Otto (otto@zoology.ubc.ca) or Thor Veen (thorveen@gmail.com) for more information.