Nintendo Power was a monthly Nintendo-focused magazine based in the United States (that also shipped to Canada). Beginning in 1988 by Gail Tilden (with support from Nintendo spokesgamer and Fun Club President, Howard Phillips and several Nintendo of America employees) the magazine was co-published by Tokuma Shoten in Tokyo and Nintendo of America in Redmond, it is one of the longest running video game magazines of all time.

(intro borrowed from https://nintendo.fandom.com/wiki/Nintendo_Power)