A bookshop that has grown explosively since 1990 together with the Brazilian publishing industry expanding from 1 shop to 4 (General/Arts & Leisure/Languages/Science & Business) all in the same office/shopping complex on the Central Avenida Paulista as well as a branch in the Villa Lobos shopping centre - if you're looking for a book, this should be your first port of call, and note that Brazilian bookshops are genuinely multilingual with lots of books in Portuguese/English/Spanish/French/Italian.
Is this your business?