There were many famous political advisers during the Warring States period.
Tips
mistakes
The traditional reading is shuìkè (4th tone on 说). Many people now say shuōkè (1st tone), which is widely accepted in daily speech, but shuìkè remains the standard dictionary pronunciation.
history
说客 originated in the Warring States period when traveling persuaders (纵横家) like 苏秦 and 张仪 would visit rulers and use rhetoric to influence state policy.