I flagged it as Offtopic. But it is correct. "Learnings" is at best a pointless affectation, like saying "utilised" instead of "used". At worst, according to the OED, it's not even a word.

http://english.stackexchange.com/questions/19227/plural-of-l...

Also: http://www.merriam-webster.com/dictionary/learning No plural option.