Pipes You See, Pipes You Don't is the side project of The Olivia Tremor Control keyboardist Peter Erchick. Created in 1999, the name is allegedly from an illustration he read in a children's book. When the members of the Olivia Tremor Control split into their various projects following the release of their Black Foliage album, Erchick submitted a track to a Jandek tribute compilation under this name.

In 2001, Erchick released the first album of this project, Individualized Shirts, originally on Cloud Recordings. A United States tour in 2002 with Circulatory System followed, along with a self-released tour album called Special Fanfare for Anything. Orange Twin Recordings re-released Individualized Shirts in 2003.

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