What is the Steiplers sefer, kehilas Yaakov abt?
Gemara in depth.
And whats an overview abt the steipler? like how cud i describe who he was, in short? How did he contribute to us?
It’s impossible for me to do him any kind of justice in the CR; in one line, he was a true eved Hashem. Read the biography on him for a more complete picture.