Did you know that the inventor of the telephone, Alexander Graham Bell, wanted everyone to say "ahoy"--instead of "hello"--when answering the phone? Or that your smartphone has more computing power than the computers used during the first moon landing? Phone a friend and dial up your knowledge to become a History of Fun Stuff Expert on phones!

Amaze your friends with all you've learned in this fun, fact-filled Level 3 Ready-to-Read! A special section at the back of the book includes Common Core-vetted extras on subjects like science, social studies, and math, and there's even a fun quiz so readers can test themselves to see what they've learned! Learning history has never been so much fun!