As for collaboration - I have done a lot, 26 books, and found publishers increasingly resistive to them. It's not that the books are bad; editors won't even read them.

Picture Quotes Maker

Top Authors

• Thomas Aquinas

  Priest

  Tuesday, Jan 28, 1225
  Wednesday, Mar 07, 1274

• Nelson Mandela

  Former President Of South Africa

  Thursday, Jul 18, 1918
  Thursday, Dec 05, 2013

• John Locke

  Philosopher

  Sunday, Aug 29, 1632
  Tuesday, Oct 28, 1704

• Vincent Van Gogh

  Painter

  Wednesday, Mar 30, 1853
  Tuesday, Jul 29, 1890

• Joe Biden

  Vice President Of The United States

  Friday, Nov 20, 1942
  

• William Blake

  Poet

  Monday, Nov 28, 1757
  Sunday, Aug 12, 1827

• Groucho Marx

  Comedian

  Thursday, Oct 02, 1890
  Friday, Aug 19, 1977

• Peter Drucker

  Author

  Friday, Nov 19, 1909
  Friday, Nov 11, 2005

• Oscar Wilde

  Writer

  Monday, Oct 16, 1854
  Friday, Nov 30, 1900

• John F. Kennedy

  35Th U.s. President

  Tuesday, May 29, 1917
  Friday, Nov 22, 1963

• Rodney Dangerfield

  Comedian

  Tuesday, Nov 22, 1921
  Tuesday, Oct 05, 2004

• Socrates

  Philosopher

  Thursday, Jan 01, 1970
  Thursday, Jan 01, 1970

• Kobe Bryant

  Basketball Player

  Wednesday, Aug 23, 1978
  

• Steve Jobs

  Entrepreneur

  Thursday, Feb 24, 1955
  Wednesday, Oct 05, 2011

• Isaac Newton

  Physicist

  Sunday, Jan 04, 1643
  Monday, Mar 31, 1727