References E.6 Other References
Some books are just interesting, even if they are not primarily about number theory. I enjoyed all of these a great deal and recommend them.
This delightful picture book has a different monster for each prime number, with bizarre combinations for composites. Personal experience says it satisfies for ages three and up.
Visualize group theory; gorgeous pictures.
A joyous and pictorially engaging romp.
A very good compendium of many articles (published throughout the years) most appropriate for teachers of undergraduate number theory.
Aimed at bringing number theory to in-practice or pre-practice educators, this has a very nice treatment of arithmetic functions. Once you've heard of summation and Moebius inversion as ‘parent’ and ‘child’ relationships, you'll never think of them the same again.
Aimed at bringing algebra and geometry to in-practice or pre-practice educators; manages to bring Gaussian and Eisenstein integers and some quadratic forms in at the ground level.
The subtitle is “and other discrete mathematical adventures”, and that about says it. Covers a surprising amount of number theory in very visual ways.
Unfortunately no longer in print, but a very good source of ideas for connecting what we usually think of as the continuous world of calculus and various discrete topics (not just number theory, though this shows up in several chapters).
The title says it all, and probably the most comprehensive resource on this intriguing mathematician out there. As is typical for a samizdat, it could use more editing and probably speculates a bit much, but given how little we know about Germain still impressive.