Explain to your parents that dog ownership leads to healthy living. Research online or at the library the particular breed you want. Show your parents photographs of the type of puppy you want from your research. Explain to your parents that a puppy is like having a baby and it's easier to bond with a baby dog. Read more ideas from http://www.ehow.com/how_11414582_persuade-parents-buying-puppy.html#ixzz1qXSxPPng.