、。
After reading a book about animal cruelty, she stopped eating meat.
Literal
She [topic-は] animal-cruelty [concerning-に関する] book [object-を] read [after-後], meat [object-を] eating [object-を] stopped.
に関する (concerning/about) is a formal compound particle — in casual speech you'd just say 動物虐待の本. The structure ことをやめた uses こと to nominalize 食べる ('eating' as a concept/activity) and やめる to express stopping — a useful pattern for expressing 'quit doing X.' The sentence traces a clear cause-and-effect narrative across the two clauses joined by 後 ('after').