Building Community to Deliver Great Engineering Through the Cardinal Peak Book Club The Cardinal Peak book club provides the opportunity to dig deeper into specific product engineering topics, refresh knowledge in areas our staff might not have investigated in a while and explore subject matter in which other employees are experts. Right now, the club is focused on “Operating Systems: Three Easy Pieces.” Also known as OSTEP or “the comet book,” this academic text focuses on three conceptual pieces that are fundamental to operating systems: virtualization, concurrency and persistence.