For the benefit of the others, here's is the complete list of files and directories installed by calibre 0.6.32 with the binary installer found using a chroot setup:
Code:
/etc/bash_completion.d/calibre
/lib/udev/rules.d/95-calibre.rules
/opt/calibre/*
/opt/calibre
/usr/share/calibre/*
/usr/share/calibre
/usr/bin/ebook-device
/usr/bin/ebook-viewer
/usr/bin/markdown-calibre
/usr/bin/calibredb
/usr/bin/calibre-uninstall
/usr/bin/librarything
/usr/bin/calibre-debug
/usr/bin/ebook-convert
/usr/bin/fetch-ebook-metadata
/usr/bin/lrf2lrs
/usr/bin/calibre-smtp
/usr/bin/calibre-server
/usr/bin/ebook-meta
/usr/bin/calibre-customize
/usr/bin/calibre-parallel
/usr/bin/lrs2lrf
/usr/bin/lrfviewer
/usr/bin/web2disk
/usr/bin/pdfmanipulate
/usr/bin/calibre
/usr/local/share/applications/calibre-ebook-viewer.desktop
/usr/local/share/applications/defaults.list
/usr/local/share/applications/calibre-gui.desktop
/usr/local/share/applications/calibre-lrfviewer.desktop
/usr/local/share/mime/packages/calibre-mimetypes
/usr/local/share/icons/hicolor/128x128/mimetypes/gnome-mime-application-lrf.png
/usr/local/share/icons/hicolor/128x128/mimetypes/gnome-mime-text-lrs.png
/usr/local/share/icons/hicolor/128x128/mimetypes/application-lrf.png
/usr/local/share/icons/hicolor/128x128/mimetypes/text-lrs.png
/usr/local/share/icons/hicolor/128x128/apps/calibre-gui.png
/usr/local/share/icons/hicolor/128x128/apps/calibre-viewer.png
They can all be safely deleted.