in spring 2009, describing the morning landscape in broad lines and dazzling colors directly on a display that offered subtle hues as unmixed expressions of pure light. Then in 2010, Hockney started working with an iPad, and the larger screen expanded his artistic repertoire and enabled an even more complex interplay of color, light, and line. Each image in this book captures a fleeting moment seen through a window in Hockney's Yorkshire home: from vibrant sunrise and lilac morning sky to peaceful night-time impressions or the sudden arrival of spring. Fascinating details reveal drops on window panes, distant lights in the night, reflections on vases or an abundance of varied window-sill vegetation. In 120 paintings made between 2009 and 2012, selected and arranged by the artist himself, we experience the passage of time through the eyes of David Hockney.