Marca Postal is a specialist online catalogue and shop focused on documenting and collecting Portugal’s local history, postal heritage, genealogy, and urban memory. Its carefully organised collection spans books and documents on local and regional history, genealogical publications, historical letters and postcards, and materials that record changing places, landscapes, and everyday life. Collectors can also explore philately, including pre-philatelic covers and thematic items, alongside cartophily, photographs, prints, and visual works such as paintings, engravings, and azulejo-related publications.

The catalogue brings together products from a range of publishers, editors, artists, and other sources, with offerings that include research-oriented books, vintage postcards, postal documents, and selected comics and illustrated publications. Items are presented by categories, countries, localities, and themes, helping customers browse subjects of interest and discover new additions. Marca Postal also publishes Imprensa Local, a newsletter issued three times a year to share catalogue updates. Orders are packaged in suitable rigid cardboard envelopes or boxes, with several postal delivery options available depending on the product.