Written as a companion volume to the author's Oxford Classical Texts edition of Livy, Books 21-25 (OUP, 2016), Liviana consists in large part of detailed discussions of 175 passages which present particular textual difficulties. The aim of these discussions is to elucidate the issues and aid readers in navigating the apparatus criticus of the edition, though the volume also expands on the edition by including a discussion of the conjectures in British Library manuscript Harley 2493 which have been attributed to 'Az' in the Oxford Classical Texts edition as well as five brief chapters listing information deliberately omitted from it: readings of the Puteaneus, identification of the manuscripts described merely as 'det(t)', and precise references for the conjectures ascribed to Weissenborn, Madvig, and H. J. Muller. These sections are preceded by a survey of the editing of Livy from the editio princeps in 1469 up to the present day, and the treatment of the edition is rounded off by a comprehensive list of addenda and corrigenda: in a brief second part, John Briscoe returns to his commentaries on and editions of Books 31-45, with discussion of a textual problem in Book 34 and the text of the fourth decade known to the pre-humanist Lovato Lovati. The volume concludes with further addenda and corrigenda to both his Teubner edition of the fourth decade and the commentaries on Books 38-40 and 41-45, followed by a brief Appendix correcting an error in the entry in Sisenna in Fragments of the Roman Historians.