Bibliotheca Norvegica is a four-volume bibliography of Norwegian literature edited by Hjalmar Pettersen. The four volumes were published between 1899 and 1924, and comprise together more than 3,300 pages.[1] The first volume is titled Norsk boglexikon 1643–1813 and features a register of Norwegian books published prior to 1814. The second is titled Norge og nordmænd i udlandets literatur, registering Norway and the Norwegian people in non-Norwegian literature. The third has the title Norske forfattere før 1814 and the fourth Norske forfattere efter 1814, recording the works of Norwegian writers before and after 1814, respectively. Pettersen had also commenced on the fifth and the sixth volume of the bibliography before his retirement in 1926, but these were never finished, owing to his death in 1928. Every volume also has an English title, even though the bibliography was published in Christiania, Norway.[2]