To cite package ‘xkcd’ in publications use:

  Torres-Manzanera E (2026). _xkcd: Plotting 'ggplot2' Graphics in an
  'XKCD' Style_. R package version 0.1.0,
  <https://github.com/toledoem/xkcd>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {xkcd: Plotting 'ggplot2' Graphics in an 'XKCD' Style},
    author = {Emilio Torres-Manzanera},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/toledoem/xkcd},
  }