There's a whole series of these, including cryptography![0] Probably shouldn't be linking to a pirated book though. There are previews on Amazon[1], and on the US publisher's site you can read the entire chapter on digital logic from the Microprocessors book[2]. It's quite good.

[0]: https://nostarch.com/catalog/manga [1]: https://www.amazon.com/Manga-Guide-Databases-Mana-Takahashi/... [2]: https://nostarch.com/download/MangaGuidetoMicroprocessors_sa...

I love this series. I read them in college, including the Manga guide to calculus among others.

The site seems to be down. Likely hugged to death?

head first databases? khe-khe-khe