Have you received, like, a gazillion emails from sites and services you subscribe to informing you that their privacy and terms of service have been updated? What is GDPR and does it affect your site on SiteFarm?
Webwash, a blog dedicated to learning development "the Drupal way" has created a two part tutorial delving further into what can be done with WebForms.
The fellow who created the Webform module, Jacob Rockowitz, posted an hour-long introduction and tutorial in Feb 2017 providing an overview of what Webform is, what it contains, and how you can use it in your site.
Advanced Webform users may want to consider ways to force certain types of validation that aren't available by default in the feature, but can be accomplished using what are called 'regular expressions' or a 'regex'.
Definition: A regular expression or regex can be described as a special text string for defining a search pattern.
Honeypot form protection means that an invisible field is added to a form. If this invisible field is filled out (bots will usually put in a value), then the form will return an error. Normal users (read: human beings) won't ever see the field, so they won't fill it out. Even if they do, the field is labeled in such a way as to indicate the human shouldn't fill out the field.
The Webforms Example module will add a collection of pre-created webforms to illustrate different aspects and usages of the Webform system. This ranges from displaying all the different types of fields you can create to sample forms for you to explore.
Users with the Editor and Site manager roles have the ability to create web forms that collect visitor-provided data and, either via email or through your site's database, allow for an export of the collected information. Contact Us forms are a separate offering, specifically intended for visitors to send a brief note containing feedback or a question.