I'm writing my manuscript for my thesis and this the package that I'm using for the fonts :
\usepackage{lmodern}
\usepackage{ae,aecompl}
I was reading a physical book and I want to know which type of font the author is using for his template.
Thank you

aepackage this century and certainly loadingaeandlmodernat the sane time can not work, they can not both set the default document font. – David Carlisle Mar 25 '20 at 16:56