Since meeting Bridget Riley in 1967 art historian and critic Robert Kudielka has proved her keenest observer. This newly revised and expanded edition collates a substantial body of his essays on and interviews with the artist. For over 40 years, Robert Kudielka has documented Bridget Riley's career progress and artistic development in an academic and personal manner, reflecting his relationship with the artist. Moving from an analysis of Riley's iconic 1960s black and white paintings to her more recent wall drawings, Kudielka explores the unpredictable changes of direction throughout Riley's career. Accompanied by over 80 full-colour illustrations, biographical notes and bibliography, the texts in this volume provide a unique insight into Riley's working methods and styles. Bridget Riley and Robert Kudielka will launch the book at a signing at David Zwirner on Monday, 23 June.