Wiktionary
vb. (context ambitransitive English) To learn (about something) by reading.
Usage examples of "read up".
My bet is he read up exhaustively on the syndrome in order to create a textbook case.
During this journey Calhoun had been ordered to read up on the ancient insanity once called the art of war.
A destruction machine, a killing machine and the only thing we ask in return is that you read up on the documents.
I'm going to go and read up on this Acheroussia and this Aidoneus.
I couldn't recall any stories associating them with spontaneous healing, but it had been a long time since I read up on nagas.
Though the doc on call at whatever hospital they went to was going to have to read up faster than I was.
Some of my people had read up on their Crusader history and nodded in recognition of the names.
The detective read up on the later Freudians, trying to interpret the recurrent dream.
He read up on local history, plumbing, and Winston Churchill, Nigel Tranter's novels and National Trust gardens.
Serial killers often read up on police procedure, collect true-crime magazines, for stimulation.
This was old news to Peez, who had read up on the Reverend's background on the flight to L.
He was trying to read up on damage assessment and damage control—.