When you have a long list of italicized book titles by an author at the beginning of a book, do you show each book title in italics? It seems like I have seen an example that allows you to begin the italic passage indicator with the first book and terminate with the last book at the end of the list. That is, as long as there are no words within the list that are not italicized.
This is a list where every item is italicized. You open italics before each item in the list and close it once at the end of the list. It follows the same rules as multiple paragraphs that are emphasized shown in 5.6 of Braille Formats. Also see 9.9.1 of the UEB rule book.