Since 1963, elementary school children have cut their reading-teeth on the Encyclopedia Brown mystery series.  The author of Encyclopedia Brown - Donald J. Sobol - has passed away at the age of 87 in Miami, Florida.

Sources close to the family say  that Mr. Sobol passed away due to natural causes.

Donald Sobol, author of beloved ‘Encyclopedia Brown’ children’s mystery series, dies at 87 - The Washington Post.