A really excellent publication dating back to 1971 – this Bridget Riley Paintings and Drawings 1951-71 catalogue.
The exhibition in question was at the Hayward Gallery, with that impressive cover and as you'll see over the page, some amazing illustrations from the show.
It's a softback catalogue that's described as being in 'fair' condition, with some cover wear and a gallery address written neatly on back cover. Despite all that, it's a great reference guide for the artist's work and worth the £10 asking price.
Find out more at the eBay website
If you are looking for a piece of affordable wall art that screams the 1960s, check out Next, which is currently selling this Optical Illusion canvas.
Yes, very much in the style of Bridget Riley or Victor Vasarely (indeed, it's not a million miles away from Riley's classic Movement in Squares), this is a fraction of the price of either an original or a legitimate print, with the image printed onto a canvas sized at 80 x 80cm.
Available online, you can pick one up for £50.