A Recently Discharged 26th Division Soldier wrote to express his sincere gratitude for the books yunho fans donated:
I was discharged recently from the 26th division. There were very few moments during my dismal life in the army that I felt sincere gratitude for someone, and one of them was when our library went through a complete transformation after Yunho hyung enlisted here. I remember how I enjoyed reading the brand new books on a wide variety of topics, including self-help. I would like to thank UKnow-Yunho nim and the fans. Hyung must have felt really proud thanks to you.
Check out here the library project report (160108), which also included, beside the book donations, Christmas treats for back then. All the shelves bear the names of the fansites that donated them and every book has yunho’s name stamped on the bottom.