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Thus far in this course, you learned quite a bit about React Native and how to build user interfaces, screens

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with it

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but what you didn't really learn is how to build a real app with multiple screens between which you

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can navigate forth and back.

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Yes, we of course had our number guesser game and there we

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had multiple screens,

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we had the three screens we used there

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but actually what we did there is that we only rendered these screens under different conditions.

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So in the end, we just had a couple of if checks there to then render one of the three screens.

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Now for this little application, for this little demo,

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this worked

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but what was missing there was some real navigation between screens, with a header, with a back button, 

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maybe with some tabs at the bottom or a side drawer you could open,

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so basically all the navigation patterns you know from most apps you download from the app stores and

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therefore that's exactly what we'll have a look at in this module. We'll have a look at how you can add

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real navigation between screens to your React Native app and for this, we'll also build a brand new app.