Sunny K. G. asked Joseph R. Lallo:

How to name a BOOK/Give a proper title for the book ?

Joseph R. Lallo This is a tricky one for me, and if I'm honest I'm not always the best at it. For me, the title of the book is usually one of the last things I determine about it. A few decent rules for picking a good title:
-Unique: You want it to be, if not the only book with this title, the only book of its TYPE with this title.
-Easy: You want something someone will be able to remember, and ideally something someone will be able to spell so they can look it up later.
-Intriguing: You want something that gives a hint of an idea of what's in the book, but is mysterious enough to make the reader want to learn more.
- Important: It's often a good idea to pick something that's key to the story, either something about the hero, something about the villain, something about the setting, or something about the problem the hero is trying to solve.

So for Free-Wrench (not a great title, search for it and you get a lot of free wrenches) it's the job of the hero. For Bypass Gemini, it's the name of a project the hero uncovers. For The Bygone Dagger, it is an artifact the hero is searching for. For The D'Karon Apprentice, it's the nature of the eventual villain.

Stuff like that.

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