Good evening... I have just purchased this resource within the last couple of days. I did so before reading the reviews. Just about every link I've ran across so far is problematic. This includes Table of Contents, footnotes, returning from footnotes, etc. The Table of Contents takes you to a broken weblink. There is still a single column of page numbers after the table of contents. I have seen this in Kindle books, but this is a first for Logos. The footnotes will take you to the right note. But when you click on the number to take you back to the text, it has shot me all over the book. The highlighting seems to be messing up. Every time I highlight something, it skips to the end of the chapter. Admittedly this may be due to using an older iPad (Mini2) However, it's not doing this on other books in Logos. The content of this book is excellent, and I look forward to reading it. However, the stated electronic problems have simply made it too difficult to read and use. I will be asking for a refund until these issues are resolved.