# Item 29: Minimize elements' visibility

DevFeed: [Item 29: Minimize elements' visibility](<https://devfeed.tech/articles/item-29-minimize-elements-visibility-39277.md>)

Original publisher: [Read original article](<https://kt.academy/article/ek-element-visibility>)

Published: 2024-05-06T00:00:00Z

Content type: tutorial

Language: en

Sources: [Kt. Academy](<https://devfeed.tech/sources/kt-academy.md>)

Topics: [interface](<https://devfeed.tech/topics/interface.md>), [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [class](<https://devfeed.tech/topics/class.md>), [properties](<https://devfeed.tech/topics/properties.md>), [maintenance](<https://devfeed.tech/topics/maintenance.md>)

Tags: [class](<https://devfeed.tech/tags/class.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [interface](<https://devfeed.tech/tags/interface.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>), [maintenance](<https://devfeed.tech/tags/maintenance.md>), [properties](<https://devfeed.tech/tags/properties.md>), [workshop-learning-programming](<https://devfeed.tech/tags/workshop-learning-programming.md>)

## AI overview

The article explains why APIs should minimize visible elements: smaller interfaces are easier to learn, maintain, test, and change. It also shows how restricting visibility in Kotlin helps protect class invariants by encapsulating internal state, including making property setters private.

## Source excerpt

Why we should minimize elements' visibility and how to do it.