Feel like talking Nerdy this holiday? Give the gifts that geeks love best, from nerdy girl clothes to awesome accessories that make incredibly intelligent fashion statements. This is smart giving any way you compute it. You can find nerd gift ideas for girls that are as one-of-a-kind as they are—T-shirts that silently correct grammar, promote hashtags, eat and sleep microbiology or even debunk atoms. Or maybe you’d rather give phone cases that keep calm and code on, clutch bags with fab lab appeal, hipster-themed power banks, law of robotics magnets and gamer mugs that always keep ‘em playing. Whether that geek on your list is self-proclaimed or just wants to advertise the nerd inside, these unique geek gifts are sure to be instant hits. Whatever her passion—from engineering to volcanoes, Star Trek episodes to atom jokes—these totes, tees, hoodies, cases, messenger bags and even more gifts for geeky girls are sure to appeal! Find sweatshirts she can wear “periodically,” tanks that power up the nerd quotient, Big Bang Theory coffee mugs and compact mirrors that sport circuit board shells. These gifts are perfect for the students and grad students on your list, plus hipsters, scientists, engineers, physicists and everyone else whose nerdiness only adds to their exponential superpowers.