Puppy Leash and Collar Training

The easiest way to teach a puppy to like a leash and a collar is to make an association between those items and taking a walk. If you are succesful in making that association, then the dog itself will put its head into the collar

Also, while at home start by putting a small rope or a scarf around the puppy so he is used to having something around its neck. This will make leash training faster and easier.