While there are many different pumps and brands on the market, they all work much the same way, except for a little more muscle power with the manual version.
In fact, the hardest part about the process might be putting the pump together the first time. After you've figured that out, however, the rest should be straightforward.
Here are some tips for getting started:
This information is courtesy of Bravado Designs, the brand synonymous with women's breastfeeding success for 18 years.
Source: Heather Kelly is an International Board Certified Lactation Consultant (IBCLC)