Books with author David Kahn

Drawing can be such a fun and healthy activity to do with your children. As a parent, have you ever looked into your 5 years old eyes and say: “I am sorry sweetheart, but I have no idea how to draw a dragon or a dinosaur?"This is the exact reason why our book exists. Don't ever feel again like you are failing your kids. Simply let them know although you are a super parent, you don't know everything. However, you know just the guide to pull out of your bookshelf to help them learn along with you.Make this drawing adventure a family affair. Come on kids and parents start this journey with us and let's draw some very special images and create one in a lifetime memories.

If you need to know it, it’s in this book. Cracking the AP Calculus AB and BC Exams, 2012 Edition, includes: • 5 full-length practice tests with detailed explanations (3 for AB and 2 for BC) • Over 400 practice questions to hone your skills • Detailed answers and explanations to show you exactly how to improve • A cheat sheet of key formulas • Updated strategies which reflect the AP test scoring change • Engaging and comprehensive review of all topics, from derivatives to integrals to logarithmic functions

Seizing the Enigma tells the thrilling story of the Royal Navy's battle to crack the Germans' supposedly unbreakable U-boat Enigma code, which would allow the vital Allied convoys in the North Atlantic to be routed away from Dönitz's wolfpacks. This battle was fought both on shore and at sea: by an assortment of scientists, chess champions and linguists, including Alan Turing, the father of the modern computer, who struggled to crack Enigma at Bletchley Park, and in the Atlantic by sailors and intelligence officers, such as Ian Fleming, the future creator of James Bond, who undertook dangerous and often fatal missions to seize the essential encryption keys and Enigma machine components from Kriegsmarine surface ships and U-boats. Kahn expertly brings this unparalleled intelligence operation to life in this revised paperback edition of his classic book.

Concise and highly focused, this volume offers everything high school and beginning college students need to know to handle problems in probability and statistics. Numerous rigorously tested examples and coherent, to-the-point explanations are presented in an easy-to-follow format.The treatment is organized in a way that permits readers to advance sequentially or skip around between chapters. An essential companion volume to the author's Attacking Trigonometry Problems and Attacking Problems in Logarithms and Exponential Functions, this book will equip students with the skills they will need to successfully approach the problems in probability and statistics that they will encounter on exams.