‘Find a subject in front of a background with depth. Take a close viewpoint and zoom in; you’ll need to be aware of the minimum focusing distance of your lens. Focus on the subject and take a single shot. Then, without changing the focal length, set the focus to infinity and take a second shot.’
Cup shots use consistent mid-aperture setting. Close view point introduces bokeh to the background, even at this aperture.
The book is taken in poor light conditions, with higher ISO and wider apertures. With focus on infinity (in the second image) the background is brought more into focus even with wide aperture.