In recent years I have been very interested in the Assouad dimension. I wrote a book on the subject:
• CUP version: the published version of the book.
• Errata: a live collection of typos and other errata. If you find anything, not listed here, please let me know!
• Open problems: a live account of the open problems listed at the end of the book. As mentioned in the book, I will keep an up to date account of the status of these open problems. Again, if you are aware of any updates or solutions to these problems, please let me know.