Sam Vaknin

Shmuel "Sam" Vaknin (mũciare April 21, 1961)nĩ mũandĩki na mũhujia wa thoome wa Mbũgĩ ena ngumo kũandĩka gĩbuku:Malignant Self Love: Narcissism Revisited (1999). O ho, no arĩ mũharĩria mũkaru wa rũrenda rwa ũteti: Global Politician. Ningĩ no akoragwo na cieya ingĩ rũrenda harĩa ateretaga ciĩgi mawonje ma mbũgĩ marĩa atuire 'narcissistic personality disorder (NPD)'. 

Vaknin ararĩ mũhunjia wa macera Southern Federal University in Rostov Oblast, Russia mwaka-inĩ 2017–22. O ho ararĩ mũhunjia wa kĩgĩna na mũhunjia wa Mbũgĩ thambo-inĩ ya Commonwealth Institute of Advanced and Professional Studies (CIAPS) mabũrũri ma Nigeria, Canada, na United Kingdom.