In 1964 Frederick Thorpe began publishing standard print titles with type set twice the size of the original printing. The books were given plain dust jackets, color-coded to indicate categories like mysteries (black), general fiction (red), romances (blue), Westerns (orange), etc. These physically large editions were difficult for some readers to handle and in 1969 Thorpe's company, Ulverscroft, began producing the books in 16 point type and normal-sized bindings.[4] In 1990 Ulverscroft expanded their large print output by acquiring the Yorkshire based large print publisher Magna Publishing.[5]