The document discusses responsive web design (RWD), which aims to provide an optimal viewing experience across different devices. It notes that RWD is important because of the variety of devices visitors use, their expectations of easy access across devices, and to improve the visitor experience. The document addresses common questions about RWD, explaining why it isn't just a fad but rather is being adopted by industry leaders. It also discusses why RWD may be preferable to developing separate mobile apps. In the end, it argues that given changing visitor behaviors and technologies, it may be time for businesses to invest in RWD.