I am designing a mobile app. To make users aware about the app concepts, I am adding few slides (pages with dot indicators at the bottom). These slides will appear when the user opens the app for first time after completing the installation. These slides will have a SKIP button at the bottom left corner to allow user to skip the introduction part and jump directly to application's main page.
My question is do we need a page which has a button to launch the slides and which tells user that a application introduction slides are about to begin?
Do we really need a screen like this? Or can we directly show the first page of the introduction slides?