To disable the My Calibre Player skill, open the Alexa app and follow these steps:
Tap More and select Skills & Games

Search for My Calibre Player and select it

Select Settings, then tap Disable Skill

Tap Disable to confirm - the skill will be unlinked from your Alexa device
To re-enable the skill in future, please follow the steps in this guide: How do I add the My Calibre Player skill to my Alexa?
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