John Gall (September 18, 1925 - December 15, 2014) was an American author and retired pediatrician.

Gall started his studies in St. Johns College in Annapolis, Maryland. He received further medical training at George Washington University Medical School in Washington, and Yale College. Eventually early 1960s he took his pediatric training at the Mayo Clinic in Rochester, Minnesota.

In the 1960s Gall started as a practicing pediatrician in Ann Arbor, Michigan and became part of the faculty of the University of Michigan. In 2001 he retired after more than forty years of private practice. In the first decades of his practice he had also "conducted weekly seminars in Parenting Strategies for parents, prospective parents, medical students, nursing students, and other health care practitioners." Until 2001 he held the position of Clinical Associate Professor of Pediatrics at the University of Michigan. Since 1958 he has been Fellow of the American Academy of Pediatrics.

After he retired, Gall and his wife Carol A. Gall moved to Walker, Minnesota, where he continued writing and published seven more titles. He died in December 2014.

The Indispensable Handbook of Systems-behavior, written specifically for all of us who must daily cope with the Pitfalls, Foibles, and Failures of the Systems that make up our Modern World.

GENERAL SYSTEMANTICS PRESS of Walker, Minnesota is proud to announce the revised and much enlarged THIRD Edition of SYSTEMANTICS, THE UNDERGROUND TEXT OF SYSTEMS LORE. Sixteen years in preparation, this THIRD Edition includes a new Preface, three new chapters, new AXIOMS, THEOREMS AND RULES OF THUMB, and many new Horrible Examples, for a total of 40 chapters covering the entire field from the PRIMAL SCENARIO to the FAIL-SAFE THEOREM and including the celebrated

definition of GARBAGE that is fundamental to any real understanding of SYSTEMANTICS.

The FIRST EDITION of SYSTEMANTICS was “highly recommended” by the American Association for the Advancement of Science’s Science Books and Films and has since been translated into Spanish, German, Hebrew, and Japanese.

The SECOND EDITION WAS favorably reviewed in the Whole Earth Catalogue by Kevin Kelly: “The author is having fun with a serious subject. . . insights come in the form of marvelously succinct rules of thumb, in the spirit of Murphy’s Law and the Peter Principle.” And Computer Book Review remarks, “From ‘Function-and-Failure’ to ‘Management and Other Myths’, here’s a collection of witty observations. . . grown into mature rules of thumb.