Conversation so far:
What has Abdul-Jabbar written?
His first book, his autobiography Giant Steps, was written in 1983 with co-author Peter Knobler.
Has there been others?
On the Shoulders of Giants: My Journey Through the Harlem Renaissance, co-written with Raymond Obstfeld, and Brothers in Arms.

Question: Did he do other things besides write?
Self-contained rewrite: Did  Abdul-Jabbar do other things besides writing?