The Lightning component framework allows you to build dynamic mobile and web applications on the Salesforce1 platform. In this course, learn how to create and use basic Lightning Components using JavaScript.
Best Salesforce Link:
https://www.infallibletechie.com/2016/05/salesforce-lightning-tutorial.html
Best Salesforce Link:
https://www.infallibletechie.com/2016/05/salesforce-lightning-tutorial.html
https://www.salesforce.com/services-training/learnlightning.jsp
It has 6 modules. All the modules are explained clearly with suitable examples.
Cheers!!!