These two pages are known as "Click Through Landing Pages" and "Lead Generation Landing Pages" respectively. You can search online those 2 terms to learn more about what each one does, especially for your business.
Why do you need to get familiar with their differences? Simple! It will help you draft clear supportive content and carefully select images, links and any aditional features, resource or material that will not only boost your page but make it an effective one.
An effective landing page drives traffic and get results. Your role is very important in here because you're the one who knows what you are expecting to do with those pages and need to have a way to meassure those results.
Every element you'll be using on your main landing pages should have a purpose. Since you have a vision, an objective, and even a target market for those pages, it is critical your elements are laid out nicely, your message is expressed directly, and your users and visitors are "guided" properly to take the intended actions.
Don't worry, I'm not collecting your email at this time, this is just a demo page. But enter any email to get to download a really good ebook with ideas to work on landing pages. It waas created by the people in one of the platform you can also use to get yours pages done - Unbounce.