Note also, to prevent further disappointment,
PDL::Graphics::Simple is mentioned only briefly in the "First steps" chapter, but further ahead almost 100 pages describe, in detail,
PDL::Graphics::PGPLOT and
PDL::Graphics::PLplot. Which I'm not sure are easy/possible to be used in Windows. It's either time to setup a double boot, or get ready to adjust all examples of "PDL Book" to
PDL::Graphics::Gnuplot (installed with Strawberry).