English language | French language | Spanish language | German language | Italian language | Russian language | Greek language | Arabic language | Portuguese language | Massachusetts Institute of Technology | Chinese language | Swedish language | Japanese language | Turkish language | Tamil language | United States Department of Defense | Dutch language | Persian language | Hebrew language | Hungarian language | Irish language | Bengali language | Polish language | Telugu language | California Institute of Technology | Korean language | Welsh language | Art Institute of Chicago | Java (programming language) | Czech language |
Walker has been a professor at such Chinese universities as Beijing Normal University, Guizhou Normal University, and both Wuhan, and Sichuan Universities and was a member of both the Board of Visitors and the Defense Foreign Language Institute.