Here are the major revelations revealed in the former Nickelodeon star's recently released, tell-all memoir Jennette McCurdy's not holding ... comedic roles on iCarly, opposite Miranda Cosgrove ...

iCarly alum Jennette McCurdy recalled how her mother Debra did not intervene when she was served alcohol or photographed in a bikini as a teenager in her upcoming memoir I'm Glad My Mom Died ...

Several publishers declined to read Jennette McCurdy ... the title alone. But McCurdy, a former child actor who played Sam Puckett on the hit Nickelodeon sitcom, “iCarly,” stuck with it.