What you mean, "we"? For you, maybe something like:
"... Dvoretsky’s Analytical Manual is, in short, a godsend, and a must for every grandmaster and every aspiring grandmaster (still young – under 40?), with high hopes and ambitions. For the rest – those simply curious – it is a way, in Mark’s words to 'peek into the world of high-level chess.' ...”
https://web.archive.org/web/20140708234012/http://www.chesscafe.com/text/review656.pdf
"... must reading for any ambitious player rated over 2200. …"
http://www.jeremysilman.com/shop/pc/Dvoretskys-Analytical-Manual-2nd-edition-77p3828.htm
or the two-volume Complete Manual of Positional Chess:
https://www.newinchess.com/media/wysiwyg/product_pdf/9040.pdf
https://www.newinchess.com/media/wysiwyg/product_pdf/9049.pdf
"The book is aimed at players who are already around first category strength [Translator's note: Approximately 2000-2200 Elo] but some examples will also be useful to players of a higher standard."
Hello chess friends! With which five books can I improve my level? My question is your personal opinion which five books will be enough for me to quickly raise my level. List five books.