Hi, the main documentation for the IEEEtran class (IEEEtran_HOWTO.pdf and IEEEtran_bst_HOWTO.pdf) seem to have been missing for the past two years of TeXLive. They are in my previous years, but not in 2019 or 2020. The documentation still exists on CTAN and is mentioned in the README document for the class. Alan