Take the subway (either Sports West Road or Sports Center, see which one is near you), go to the Agricultural Institute, go out from Exit A, come out and see the road called Dezheng Middle Road (don't look back, just don't go to No.4 Zhongshan Road, go to Wen Ming Road), and walk 20 meters to the left at the intersection of Wen Ming Road and Dezheng Middle Road.

If you can see another relatively large library from Exit C or Exit D-Guangzhou Library, you can also visit it. There are also many books there.