In Brazil dictionaries go with the nickname of Aurelio, of obvious derivation.This is a quite complete dictionary, slightly less complete and up-to-date than its recent competitor Houaiss, but its entries are more concise, clearer, conform better to the official and colloquial norms of spelling, and sometimes even have a better flavour.It does come in inferior binding, though — plan for rebinding it after a few months' intensive usage.If you really want something up to the minute, wait a few months for a new edition by a new publisher, Positivo — it may receive a better binding then too.Be warned it is not a full-length dictionary as the Oxford English Dictionary or the French Robert, if you really want something like it check dictionaries from Portugal or wait some months for a promised new edition of Caldas Aulete.