SharePoint ReST API - Difference between "application/json" & "application/json;odata=verbose"

Hi,

We are working on developing an integration with SharePoint using ReST APIs. We observed that there are two values that could be specified for ACCEPT header like -

"application/json;odata=verbose" and "application/json"

and the response varies when we apply the differnent header mentioned above. I would like to understand the purpose of having two ACCEPT headers and which one is recommended while integrating using ReST APIs.

thanks,

BrajMohan