Get a Tech Job, Babies! If your idea of a perfect board book for people under the age of three is Sandra Boynton's 1982 classic " Moo, Baa, La La La!," you might be surprised to discover what's passing for toddler literature these days. Forget the silly animal high jinks, the humble slapstick of peekaboo and patty-cake, and the earnest overviews of shapes, colors, and numbers; some of today's baby books have far loftier ambitions. A sampling of titles from the past decade: " Bath Time Physics," " General Relativity for Babies," " Baby Loves Aerospace Engineering! Open the sturdy turquoise cover of Ruth Spiro's " Baby Loves Coding!," illustrated by Irene Chan, and you might be lulled into thinking that this is, indeed, a book for very young children. It's small (about seven inches square), short (only ten spreads), made of chunky cardboard, and full of bright colors. It starts off promisingly, with a smiling toy train rolling toward a bobbleheaded, pink-cheeked baby. This pattern of steps is called an algorithm. The train follows an algorithm, too. A tiny computer tells the train what to do. A programmer writes an algorithm in a language the computer can understand. The language is called code. The computer reads the code and follows the steps in the algorithm. Lately, these tech-oriented books for infants and toddlers seem to be everywhere. The twenty-six books in Spiro's "Baby Loves Science" series are rivalled by Chris Ferrie's extensive "Baby University" collection, with such winning titles as " Electromagnetism for Babies," " Quantum Computing for Babies " (co-authored by William Hurley), and " Robotics for Babies " (co-authored by Sarah Kaiser). And let's not forget the "Big Science for Tiny Tots" series, from MIT Kids Press, featuring " High Chair Chemistry " and " Playtime Engineering ." In a manic burst of science geekery, there are even special holiday versions of Spiro's "Baby Loves Science" books, though you might have trouble getting past the word-salad titles: " Baby Loves Angular Momentum on Hanukkah!