An Illustrated Theory of Numbers gives a comprehensive introduction to number theory, with complete proofs, worked examples, and exercises. Its exposition reflects the most recent scholarship in mathematics and its history.
(BTW, there are some communities, r/crypto [2] for example, which don't like the use of "crypto" to mean "cryptocurrency")
I would also recommend "Prime Numbers and the Riemann Hypothesis" for its illustrations and exposition [1].
Do check out the published page spread previews of this book-in-progress: they’re beautiful!