When ever I encountered his tracts out and about, I was drawn to open and read them.
They were very thought-provoking and effective.
One of his most popular and apropos to current times:
The Beast (end times which usher in the mark of the beast)
https://www.chick.com/m/reading/tracts/readtract.asp?stk=0007
Definitely one more people in the world need to read.