She spent a year researching the book full-time and another year writing it.
Times, Sunday Times (2008)
I set off for America to research a book comparing baseball and cricket.
Times, Sunday Times (2013)
Although the book is carefully researched, its treatment of history is oblique.
Times, Sunday Times (2013)
Definition of 'book'
book
(bʊk)Explore 'book' in the dictionary
countable noun
A book is a number of pieces of paper, usually with words printed on them, which are fastened together and fixed inside a cover of stronger paper or cardboard. Books contain information, stories, or poetry, for example.
Definition of 'research'
research
(rɪsɜːʳtʃ)Explore 'research' in the dictionary
verb
If you research something, you try to discover facts about it.