Why Toggle Buttons Are Confusing. Not all buttons execute actions…, by UX Movement

Not all buttons perform actions. Sometimes they’re used to change states on an app. These are known as toggle buttons. They present two or more options in a single control and allow users to change…

Button differentiation done right, by Adir SL

toggle - Switch on/off use with button - User Experience Stack Exchange

gui design - Should a toggle button show its current state or the state to which it will change? - User Experience Stack Exchange

Interaction design principles, conventions and standards

5 Techniques to Make Mobile Call to Action Buttons Intuitive, by UX Movement

Cancel as a button or a link? Which is best UX practice?, by Karim Maassen

Effective toggle button design [Research Overview + Guidelines]

Toggle Switch: 5 Simple Design Tips For Better Design, by Nick Babich

How to handle affirmative button placement when buttons are stacked (mobile, buttons, call to action, UX) - Quora

History Of Toggle + UI/UX Case Study + UI Samples :: Behance

The Confusing State of Toggle Switches, by UX Movement