Edited sentence: " Other books by one of these authors explore the lives and work by Tom's parents Damon and Anne." They are, however, far superior to any of the Tom Swift series beginning with Series IV.As these books and collection of novellas and short stories are not part of the more mainstream adventures they must be deemed to be "fan fiction.Damon remains an inventor at heart, but Anne uses her advanced degrees in micro-and microbial biology to work with the FBI on secret cases that included clones, deadly insects, a man whose mere touch can kill, and other medical mysteries.Many of these may be located on private websites and some are available from Amazon.Many of these solo efforts are ongoing by the authors with books published as recently as January 2021 (that author claims to have 32 novels in print with another 9 "in the works" for release between January 2021 and December 2025).Starting in the early 2000s, a series of at least seven "fan authors" have been adding to the world (Universe or Multiverse) of Tom Swift.There are books and stories that do a much more complete job of describing the secondary characters and even some of Tom's gadgets that generally received a "Tom grabbed the X and raced from his lab.This Tom's father (Damon Swift) is the grandson of the original Tom Swift, with George Swift (Tom's only son) in between.Tom and everyone else also age and are not perennially 18 years old.Understand that these are not groups of unnamed authors working for a publisher; these are individual authors.With some of these continuing on within the Tom Swift Jr.world, others have embraced a Tom Swift with primarily the same people around him, just a couple generations farther along making use of advancements in today's technology to advance the storylines of the books