From the 1970s to the early 2000s, when I subscribed to Writer's Digest magazine, the only black writer I can remember seeing on the cover was Alex Haley of Roots fame. In all that time I never saw any articles about black writers or other writers of color in its pages. It was as if other writers of color like John A. Williams, Amy Tan, Alice Walker, Toni Morrison, and Ernest Gaines didn't exist.
I recently resumed my subscription to Writer's Digest (no longer a monthly; it is now published every two months). I was delighted to see writers of color like Zadie Smith and Viet Thanh Nguyen featured as well as an article about Patrice Caldwell, a young black literary agent.
Finally, Writer's Digest and other writing magazines have ceased ignoring writers, editors, and literary agents of color in their pages.