Door sign for your library with the silhouette of some old books on a shelf in art nouveau style, part of a series. 图书馆 本书 阅读 库门标志
Free Open Book Vector! This book vector is created blank and open so you can have a blank slate when you use this for your next project. Use this book vector in your next piece! 本书 教育 学习 打开的书矢量
Silhouette of some books stacked on a shelf. The board and the books are separate objects. 剪影 货架 图书馆 书籍
an image from the US government EPA "Sunwise" program. I converted it from PDF format, and removed all the "sunwise" logos. the source link is here - http://www.epa.gov/sunwise/doc/guide.pdf epa 司文斋 本书 钢笔 书和笔