Keyboard shortcuts enhance accessibility in a GUI by:

1. Providing an alternative to mouse navigation: Users with mobility or dexterity impairments can interact with the GUI without relying on a mouse.

2. Increasing efficiency: Keyboard shortcuts allow users to perform actions quickly, reducing the time and effort required to complete tasks.

3. Facilitating navigation: Keyboard shortcuts can help users navigate the GUI, especially for those with visual impairments who may rely on screen readers.

4. Enabling access to hidden features: Keyboard shortcuts can provide access to features or functions that may not be readily apparent or accessible through the GUI.

5. Supporting muscle memory: Keyboard shortcuts allow users to develop muscle memory, reducing cognitive load and improving overall usability.

6. Accommodating different learning styles: Keyboard shortcuts cater to users who prefer keyboard-based interaction or have difficulty using a mouse.

7. Enhancing usability for power users: Keyboard shortcuts enable power users to work more efficiently, completing tasks quickly and accurately.

Common keyboard shortcuts include:

- Navigation (e.g., arrow keys, Tab, Enter)

- Actions (e.g., Ctrl+C, Ctrl+V, Ctrl+Z)

- Menu access (e.g., Alt+F, Alt+E)

- Dialog box navigation (e.g., Tab, Shift+Tab)

1. By incorporating keyboard shortcuts, GUI designers can create a more inclusive and accessible interface, benefiting users with disabilities and improving overall usability.