take a page from (someone's) book(redirected from takes a page from their book)
take a page from (someone's) book
To do something in the way someone else would do it; to behave or act like someone else. I think I'm going to take a page from your book and start going for a run first thing in the morning. Our youngest son was always very placid as a baby, but now that he's getting older, he's begun taking a page from our older boy's book.
take a page from someone’s book
tv. to copy or emulate. I took a page from Edison’s book and began inventing useful little things.