The logo uses a simple plus and minus pictorial technique. BIBLIOTECA PÚBLICA de Macau is the official Portuguese name of the Macao Public Library, which stands for BIBLIOTECA, BOOK, and PÚBLICA de Macau. The image is also the side of a stack of books, the most powerful representation of the library – books. A serif (Sans-serif B) forms the lower back cover of the side panel, which is also a B. It is also a serif.