Guesstimation 2.0 - Solving Today's Problems on the Back of a Napkin
                                
                                
                             
                            
                         
                            
                            
                        Reveals the simple techniques needed to estimate virtually anything and illustrates them using an eclectic array of problems. This title shows how to estimate everything from how closely you can orbit a neutron star without being pulled apart by gravity, to the fuel used to transport your food from the farm to the store.