Software testing is a critical stage in software development used to ensure that a program meets required specifications, and does not contain errors in programming code. As with all stages of software development, in testing there are many traps you can fall into, thereby missing errors. Testers need a handbook of tips, tricks, and common pitfalls to help them avoid testing errors without the years of experience, and trial and error it normally takes to do so. James Bach and Cem Kaner, 2 of the world's leading testing experts, deliver the lessons they have learned in their over 30 years of combined testing experience.