Now that you own the Geller Book, Version 5.0 (3 ring binder), everytime we update the book you only have to buy the updates pages, no binder required.
We send you the newer pages, remove the old, in with the new! Shipping is less expesnive as well. 2 books can be shipped out Priority Mail for about $5.
You must of course have the 3 ring binder, Vesrion 5 Geller's Blue Book.
If you need additional books, just order the "additional book" for $65. This includes the pages, binder, calculator and millimeter gauge.