Watching movies is a very useful way to educate onself on the issues facing other animals. A highly recommended film is Tribe of Heart’s Peaceable Kingdom: The Journey Home.It tells the story of people who were involved in animal agriculture but realised the injustice of earning their livelihoods on the backs of sentient others. It depicts farmers’ connections with the personhood of the animals they were exploiting, while also making clear the complex web of social, psychological and economic forces underlying their dilemma.
Another useful source of information on animal use is the film Earthlings, the first in a trilogy produced by Nation Earth. You can view it here. (Warning: disturbing content). Please note that this film depicts standard practice in farming. Although the film focuses more on treatment than animal use, it is important to face the consequences of what is perpetrated on other animals when we are not vegan.