"launched a book" is correct and commonly used in written English.
It refers to the act of officially introducing a book to the public. This phrase is often used when an author or publisher promotes a new book, typically through events, interviews, and social media. Example: The author launched her new novel at a book signing event, where she talked about her writing process and signed copies for readers.
Last June, she launched a book.
We are doing standup comedy awards on Steve Wright's show, Simon Mayo's launched a book club in drivetime.
Mark Zuckerberg has discovered "the book" – he finds them "intellectually stimulating" and has just launched a book club.
The MP spoke as he launched a book of policy ideas for London, including ways to solve its housing crisis, which may be seen as a platform for a potential bid to succeed Boris Johnson as mayor in 2016.
He also launched a book festival to help raise money for the library: now in its third year, the Appledore Book Festival at the end of this month will feature Michael Morpurgo, Patrick Gale and Victoria Glendinning.
As Guevara was yesterday voted 'Argentina's greatest historical and political figure', ahead of the anniversary of his death next month, a publishing house in Mexico launched a book containing the contents of his anthology.
(BuzzFeed itself launched a books section of its Web site over the summer, following the success of a post entitled "65 Books You Need To Read In Your 20s," and just hired its first books editor).
The Playhouse is also launching a book to commemorate the anniversary - Liverpool Playhouse: A Theatre and Its City.
Years ago I was at a lunch to launch a book that Ashmead was publishing; I think it was "Pilgrim" by the late Timothy Findley.
"I was shocked and depressed," said Fatos Lubonja, a famous Albanian writer who was launching a book in London the following day.
Ronald and Bryan Williams, the founders of the rap music label Cash Money Records, plan to launch a book imprint called Cash Money Content.
