"....winner of the Transfiguration Today Most Promising Newcomer award"
-- Minerva McGonagall, during her time at Hogwarts (Pm)
“Transfiguration Today” is one of several ‘trade’ magazines in the wizarding world.
This magazine has international readership, and it has been around for decades. Tina and Queenie Goldstein had this magazine, along with The Witch’s Friend and Witch Chat, in their apartment (WFT).
“The Magazine that Changes Lives”, according to their advertisement in the Daily Prophet (which included a coupon entitling the bearer to a free Muggle Guard with the December issue) (DP2).
Harry overhears wizards debating articles from this magazine in Diagon Alley (PA4).
Albus Dumbledore had at least one paper published in it when he was still quite young, a paper on Trans-Species Transformation (DH2, DH18).
While the date printed on DP2 is 8 February 1999, the timeframe for these events is 1992-1993.