I only recently received my order, so I have not yet actually started using any of these books. However, I will share my initial thoughts about them!
While these could potentially be used side-by-side, they would also work as stand-alone Bible study resources, for while Search the Word is a guided 6-week study stepping you through the process of studying the Bible, Book by Book guides you through an in-depth study of a book of the Bible, and In the Word provides a structured journal for putting into practice the principles learned in Search the Word. So while it is helpful to have all three of them together, it is not necessary to have all three books in order to work through the Search the Word study or incorporate Book by Book or In the Word into your study of the Word. If you already have a strong foundation on how to study the Bible, you could potentially use Book by Book or In the Word without having gone through the 6-week study. However, if you are not familiar with how to study the Bible or need to strengthen your understanding of how to do it, I would suggest you start with Search the Word, and then move onto the other two books!
As far as the specific books go, here are a few more thoughts:
1. Search the Word: This looks like a very thorough study on how to study the Bible! I love how it is broken down into such do-able daily sections, with a great balance between instruction and practical exercises. Over the years, I have worked through several different "How to study the Bible" studies, but this is still an area that I struggle with being confident in, so I am excited to dig into this study!
2. In the Word: I originally thought this book was a side-by-side workbook for going through Search the Word, but it isn't. Rather, it is what you could describe as a Bible-study journal that helps guide you through the study process of any passage, whether or not you're actually working through Search the Word.
3. Book by Book: This little book is focused on studying a book of the Bible as a whole. I have often tried to tackle studying an entire book of the Bible by myself, but I often get stuck somewhere in the middle and never feel like I have actually finished it. Book by Book steps you through making initial observations such as background information and purpose of the book, to noting themes, to outlining the book, to identifying Christ and the Gospel, to application. I am excited to begin using this book!
Finally, one very practical note: I was very happy to discover that the paper inside each book is of regular quality and not semi-glossy like a previous study that I had bought from Daily Grace (the semi-glossy quality of the previous study is terrible for writing on, both with pen or pencil.)