Horse World was a short-lived equestrian magazine published from 1966 to January 1975. It was edited by James Gleeson, and was initially published by Horse World Publications Ltd. In 1974 it was sold, and gained a new editor, before closing shortly afterwards.
The magazine’s content was a mixture of articles and new reports.
Horse World also published an annual, which ran from 1969 to 1973 (that I know of: it’s possible there are more I haven’t found).
Many thanks to Pam Wakelam for all the information on this title.