The Flash books I mention below are 7, as follows:

2 O’Reilly books: Actionscript for Flash MX Second edition, and ActionsScript Cookbook.
Peachpit Press: Macromedia Flash MX Advanced
Flash MX Savvy (Sybex)
Flash MX Actionscript Bible (Wiley)
MaranGraphics/Hungry Minds “Visual” series: Flash Actionscript (just noticed it uses Flash 5 Actionscripting)

I also bought another O’reilly book, Amazon Hacks
I was in a hurry to find some immediate help on some MovieClip code I need to load a single frame from a movie into my “Placeholder Clip” that I put in my movie to hold the other swf files I am loading for each of the main sections of my site application. What I end up doing quite often is “borrowing” books from Amazon and/or Barnes and Noble, and if they turn out to be a “must have”, I order them via Amazon and then return the copy (usually full price purchase) to the store. I figure that I support those stores well via coffee purchases (a usual step in the bookstore visit) and the books I end up keeping (like the WIRED: A Romance) I bought, or DreamweaverMX/FireworksMX Savvy, or Fireworks MX: From Zero to Hero, etc.

I also expect that soon I’ll be set up at OSG to get some stuff via their Bookstore, and perhaps eventually get a Dev resource Budget to get useful reference and/or training books. I’m looking eagerly forward to getting my hands on the new Macromedia Training From The Source Books on Flash MX 2004 Pro and Flash MX —one of the authors of Macromedia Flash MX 2004 ActionScript : Training from the Source, Derek Franklin, has a blog where he is planning to do some “preview” of some of that content in that book. (Right now he’s working on the Macromedia/Microsoft browser change workaround made neccessary by the insane negotiations about the permissions of IE to “auto-load” embedded content (read bout that from Derek here