Thanks for your question, Jordan! This is actually a collection, not a micro-credential. Collections are meant to help you learn or share your expertise on topics of interest. You can check out all our micro-credentials through the BloomBoard homepage. You are not required to purchase books in order to obtain a micro-credential but reading additional information would certainly be helpful. Many micro-credentials are aligned to a collection or two, meaning that reading through the collection(s) will help you obtain the micro-credential but you are not required to do so. If you have additional questions, please click on the "chat" button at the bottom right of the page and we'll be happy to help out.