The phrase "a stack of notes" is correct and usable in written English.
It can be used to refer to a collection of written or printed documents, often stacked together.
Example: "After the meeting, I found a stack of notes on my desk that I needed to review."
Alternatives: "a pile of notes" or "a bundle of notes."
He obtained a stack of notes from Derek's stays at two California rehabilitation clinics.
In the present tense of the Hudson Theater, the wattage had been dimmed by the years, as the two sat in armchairs on a raised platform and Brown, holding a stack of notes, leaned forward to pepper the former president with questions about Libya as he, a slight croak in his voice, wielded the cordless microphone like a man gesturing with a highball.
After an afternoon spent learning about sarcoma diagnosis and management alongside my designated physician, the time had come for me to talk one-on-one with Fran, a retired nurse who had brought a stack of notes and calendars with her to her follow-up appointment.
Studying a stack of notes handed to her by a producer, Rivers leaned over to Jones and asked how to pronounce one of the words.
Joey sat down and flipped through a stack of note cards, studying an outline of the key themes of his candidacy -- his working-class roots, his intellectual fitness, and all those second chances he'd had.
"No," he said, then picked up a stack of statistical notes and his research while noting it was available to everyone.
One EPA employee spotted him heading out into the summer evening, with a stack of handwritten notes for people he hadn't gotten a chance to tell goodbye.
After four hours, he left the studio with a stack of handwritten notes and a promise to bring regional leaders to task over the issues that had been raised.
"You don't talk about evidence!" But the cornerstone of Friedman's career is something much simpler: a series of slides and a stack of lecture notes.
All you need is a stack of sticky notes, a black marker, and the ability to write legibly.
"What?" My grandmother turned to look at me, a stack of Sticky Notes with random English words on them in her hand.
