Schnauzers are very intelligent dogs, even little puppies, need to learn that you are their “alfa” leader of the pack.   :)   Remember they are babies now, but ALWAYS train with gentleness and love. A firm voice with instruction will go a long way.
    It is important for your adorable little Miniature Schnauzer to know who is the boss early in your relationship. Do not play rough with your puppy, doing this will encourage aggressive behavior in him. Biting on your hands and fingers is also a no-no. Besides those needle sharp teeth hurting and it being bad behavior it is also challenging your authority. (this is the way the dog thinks). If the puppy wants to bite and chew give him something appropriate to chew on, a toy or a teething chew. ”Replacement” should work. If not, a little thump on the nose as he is about to bite with “NO BITE”command.
    There are several other methods also if you have trouble with a stubborn puppy. For chewing on other objects not appropriate give them a "NO" command and replace whatever with something the puppy CAN have. Jumping up on you, biting clothing, etc. are some of the bad habits that develop as a puppy won’t be desirable when he grows older. Don’t let him do things as a puppy that you don’t want him to do when he is grown. Your Miniature Schnauzer puppy is ready to learn the simple sit, stay, come, commands, and of course walking on a leash. This will also help him learn that you are in control.
    Basic obedience class is a must for several reasons. First, you will have a well mannered, confident dog that everyone will enjoy being around. Secondly, the time you spend with your schnauzer will develop a special bond with you. It should be an enjoyable time for both of you. Choose an instructor who encourages positive reinforcement, understands the mind of the dog and, respects a dog’s sensitivity.

: Below is a short list of books you may find helpful in raising your new Miniature Schnauzer puppy. I have found them to be some of the best and many trainers are in agreement. 

1.”The Art of Raising A Puppy” by Monks Of New Skete Referred to has your homework to read before you bring your puppy home. 

2."Cesar's Way" by Cesar Millan, Known as the Dog Whisperer.  Laying the groundwork for you to have a stronger more satisfing relationship with your canine companion.   Available online at 
www.cesarmillaninc.com  or call 1-888-526-8624