The package pict2e that is mentioned in the 2nd edition of “L^{A}TEX: A Document Preparation System” has not yet been produced.

Most of the basic functionality of the proposed package—implementing picture mode commands using driver specific \special’s (eg PostScript code) is available in the old L^{A}TEX2.09 packages:

• pspicture (By David Carlisle).

• pspic (By Kresten Krab Thorup).

However there are some syntatic differences between these styles, and the proposed pict2e. Both these packages are available from ctan:

ctan:macros/latex209/contrib/misc/pspicture.sty
ctan:macros/latex209/contrib/misc/pspic.sty

Another alternative would be to use the very powerful pstricks package written by Timothy Van Zandt. Ctan archives have pstricks in the directory:

ctan:graphics/pstricks