Complex sentence: In 1953, Tibs featured in a book titled "Cockney cats" by Warren Tute and Felix Fonteyn, and he appeared at a "Cats and Film Stars" party.
Split into simpler sentences: In 1953, Tibs featured in a book titled "Cockney cats" by Warren Tute and Felix Fonteyn. He also appeared at a "Cats and Film Stars" party.