$3.99 Kindle and PDF

The price drop to $3.99 for the Kindle and Lulu.com PDF version is live.

The print version is still the same. Createspace isn’t letting me drop it as far as I want just yet without having to ditch the expanded distribution channel. Working on it.


My sales dropped because of this and I put the price back a few weeks later.


  1. Anonymous says:

    Thanks for the drop in price and Kindle version. I picked it up last night.

  2. I'm glad you have a pdf version. I just bought it to send to a friend of mine. He definitely needs it.

  3. Ideal price points:

    $9.99 for a smaller format paperback.

    $19.99 for a hardback autographed by you.

    $29.99 for a hardback autographed by Jennifer.

    $149.99 for those accustomed to paying scientific book prices. Of course, you would have to rename it to something like "Topological Dynamics and Coupling Equations".

  4. Damn! Bought it a few weeks ago! Anyway, I will warn my friends that are showing interest.

  5. Anonymous says:

    Picked it up. Added apps to my iPhone so that I can read it there and have it read to me in the car. Thanks.

  6. Ian Ironwood says:

    Glad you took the plunge. You should see your sales — and profits — start to rise dramatically. Price point is everything on Kindle.

    Good luck!


  7. Still waiting for that Ian…

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