Here are some resources for learning Carrara. These are mainly geared for Carrara 8 and 8.5.
Free Resources
http://www.carraracafe.com
pdfs: http://docs.daz3d.com/lib/exe/fetch.php/artzone/pub/faq/software_carrara/carrara/carrara_8_basic_guide.pdf
http://www.markbremmer.com/3Bpages/darkarts.html#
Commercial Training Resources
http://www.daz3d.com/carrara-8-training-instant-digital-download
http://www.daz3d.com/carrara-8-5-tutorial-video-11-5-hours-long-instant-digital-download
http://www.daz3d.com/learning-carrara-8-5-tutorial-videos-new-features-instant-digital-download
http://www.daz3d.com/advanced-carrara-techniques
http://www.daz3d.com/carrara-modeling-tutorials
Legacy
Carrara 7 PDF
http://docs.daz3d.com/lib/exe/fetch.php/artzone/pub/software/carrara/carrara7_user_guide.pdf