Infographics are widespread in the media. For the public, infographics enrich the form of information, relieve the burden of under standing complex information, and speed up the spread of information. However, for the 2.2 billion people with visual impairment, it is unclear whether infographics speed up or slow down access to information. In this study, we conducted a survey study to estimate the importance of infographic reading in the lives of BLV people and then interviewed 18 BLV people to observe and understand their practices and challenges when reading infographics. By analyzing their think-aloud verbalizations and practices, we identified three thinking patterns that BLV people follow when reading infographics. Furthermore, according to our observations and interviews, we summarized the challenges BLV people encounter when reading infographics and their expectations for improving the accessibility of infographics. Lastly, based on our findings, we propose five design considerations to improve the accessibility of infographics.