# Overlays

We prefer to stand on the shoulders of giants. A lot could be written on this topic of overlays and a lot already has.

Tabs: [About](/patterns/overlays/overlays.about.md) · [Resources](/patterns/overlays/overlays.resources.md)

If you have a need to explore further the different ways of having conversations with users, these are some resources that we've found helpful:

- [Overlays](https://www.audi.com/ci/en/guides/user-interface/components/overlays.html) (Audi Design System)
- [Modals (Dialog Windows)](http://web-accessibility.carnegiemuseums.org/code/dialogs)
- [Tooltip, Popover, and Modal](https://cultureamp.design/guidelines/tooltip-popover-modal/) (Culture Amp)
- [Tooltips, popovers and modal windows](https://www.checkmarket.com/kb/survey-tooltips-popovers-modal-windows) (Checkmarket)
- [Modal & Nonmodal Dialogs: When (& When Not) to Use Them](https://www.nngroup.com/articles/modal-nonmodal-dialog) (NNGroup)
- [When should I use a popover vs a tooltip?](https://ux.stackexchange.com/a/94552) (Stackexchange)
- [Popups: 10 Problematic Trends and Alternatives](https://www.nngroup.com/articles/popups) (NNGroup)
- [Tooltip alternatives](https://primer.style/design/accessibility/tooltip-alternatives) (Primer)
- [Your tooltips are bogus](https://heydonworks.com/article/your-tooltips-are-bogus/) (HEYDONWORKS)
- [Messaging components](https://www.lightningdesignsystem.com/guidelines/messaging/components/overview/) (Lightning design system)
- [Tooltips and Popovers](https://yale-a11y.gitlab.io/ui-component-library/tooltips-popovers) (Yale a11y)
- [Modality Is the One UX Concept That Most Designers Don’t Fully Understand](https://uxplanet.org/modality-the-one-ux-concept-you-need-to-understand-when-designing-intuitive-user-interfaces-e5e941c7acb1)
- [Tooltips (Material Design)](https://material.io/components/tooltips)