 Probability
This textbook is ideal for an undergraduate introduction to probability, with a calculus prerequisite. It is based on a course that the author has taught many times at Berkeley. The text's overall style is informal, but all results are stated precisely, and most are proved. Understanding is developed through intuitive explanations and... |  |  Rails Test Prescriptions (Pragmatic Programmers)
Your Ruby on Rails application is sick. It's got bugs. Nobody remembers what that tricky piece of code was supposed to do, and nobody can tell what it actually does. Deadlines are looming, but every time you make the slightest change to the code, something else breaks.
You need Test-Driven Development (TDD), a... |  |  |