Creative Mathematics
Here's a few of the books that have influence and improved my creativity
and joy of mathematics. Most are recommended for teenagers seeking to expand
their view of math beyond rote applied algebra. Math isn't just a tool
for balancing checkbooks or finding angles of triangles; math can be a
wholly engaging end unto itself just like art.
Statistics
Amusing Math
Math and programming
Making computers
Hardcore math [a hint of what mathematicians and computer scientists
must study]
Fractals
Cryptography
History of applied math
Math as worldview
Misc