Dear texhax, is there a LaTeX command which changes the counter of a section and its subsections from the default numeric counter into an alphabetic character. E.g. the last section of a paper may serve as appendix, which should not be numbered by 8, 8.1,8.2,8.3 etc. but rather by A, A.1,A.2,A.3 etc. Many thanks for help. P. Glöde