My inventions - The autobiography of Nikola Tesla.

Thank you very much. This is really great. I really love the work of Nikola Tesla and I will enjoy reading this. This is a very thoughtful gift, science and books combined. If this one is so great I can't even imagine what will the second one be.

And the second one is here :-)

Magnetic gadget that floats in midair. Nobody really knows how does this work, but I love it.

Thank you again.