[aur-general] "install" recursive?

Hi, I was told it was best practice to use "install" rather than "mkdir" and "cp" in a PKGBUILD, but how can you copy a directory and its contents (recursively) using "install"? If you cannot, with a folder with lots of files, is it best practice to list every file to copy with "install", or use one command to "cp" the whole folder? Thanks, Jonathan