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I've previously gifted the first volume at multiple baby birthdays. I most recently bought this bundle to use as a teaching demo in my Intro to Computer Architecture college course. My students' eyes lit up and it was clear they immediately understood XORs, MUXes, state elements... The changing lights in Big Babies is slightly distracting/doesn't create enough contrast between inputs for doc-cams/video, but the tactile nature of the books is something that my (adult) college kids can't get enough of. Highly recommend either volume in this series!
These books are incredible, I loved learning along with my little one. However, after just about 5 uses some of the buttons aren't working. I have to try getting a new battery, hopefully that will fix it.
Computer Engineering Big & Small Bundle
Sometimes it gets confused about which page is open, and then it can act weirdly. But that is the only complaint I can have.
Love our baby slowly understanding the latch circuit (1 button turns it on, the other turns it off).