When starting out with IDA, you may be perfectly satisfied with both its default behaviors and its default GUI layout. As you become more comfortable with IDA’s basic features, you are certain to find ways to customize IDA to your particular tastes. While there is no way to provide complete coverage of every possible option IDA offers in a single chapter, we have attempted to provide pointers to the principal locations in which those options may be found. We have also attempted to highlight those options that you are most likely to want to manipulate at some point in your IDA experience. Discovering additional useful options is left as a matter of exploration for inquisitive readers.