Dawson and Trapp: Chapters 1-4 (pp 1-80).

Making sense of health statistics
Gigerenzer G et al (2008). Helping doctors and patients make sense of health statistics.

Reproducible research
Laine C et al (2007). Reproducible research: moving toward research the public can really trust.
Morris J (2010). Fatal flaws in cancer research.

Good plots, bad plots
Karl Broman's web page of the Top ten worst graphs.