Now that you own the Geller Book, Version 5.0 (3 ring binder), every time we update the book you only have to buy the updates pages, no binder required. So to update to the new Release 6.20; if your bindes are in good shape all you need are the paper pages. Swap them out and you're good to go! Pages are only $60.00 per book plus shipping.
We send you the newer pages, remove the old, in with the new! Shipping is less expensive as well. 2 books can be shipped out Priority Mail for about $8.
You must of course have the 3 ring binder, Version 5 Geller's Blue Book.
If you need additional books, just order the "additional book" for $80. This includes the pages, binder, calculator and millimeter gauge.