@Mel Hopkins You know your suggestions for the missing information is really important. I'm thinking about writing an article for the minimum set of information an author should provide when sharing information about their book with booksellers, readers, reviewers, news sources, etc.
From personal experience if I have to take extra steps to find the required missing information, if there is not other compelling reason for me to do it, I simply won't. The hashtags you provided could also be described a keywords. Ernest provided the ISBN13, which is perhaps the single most important piece of information to me.
There is a hot topic in publishing surrounding all of the information regarding a book and it is called metadata; it sounds more technical that need be, so I suspect authors don't think about it very much.
This has always been important to me, and has become increasingly important since AALBC is now database driven. I spend a lot of time cleaning up bad or supplementing missing metadata for a book.
Here is an example. A publisher uploads a book's, title, series name and series number into the title field when uploading information to Amazon or some other database, This information should be uploaded the 3 fields provided for this information. Not only does this make the book title wrong, it looks sloppy.
When I retrieve this information from Amazon I have to manually parse it out and I only do this for paid clients. Amazon does not care, they just take what the author uploads. Another common problem I see on Amazon's site is ISBN13 in the ISBN10 fields. This matter to me because I have a process that pulls this information from Amazon (sadly many author give exclusive rights to sell their books Amazon, so it is the only place the information is available). I so when I pull the ISBN10 but it is actually an ISBN13 -- it srews up the book's record in my database.
More importantly is many authors don't make proper use of the BISAC codes. This is a list of almost 5,000 categories in which a book is associated. I just added a new feature to the website that will list books by these categories, which make it so much easier for readers to discover the books they are interested it (this also help search engines as well)
For example Mel Sleeping with a D-Man: An Urban Fantasy Novel BISAC category is "Fiction / Romance / Fantasy" and "Fiction / Science Fiction / General." Now visitors to the website can discover all of the books written by Black writers which fall into these categories -- no other site is doing this!
If a customer is a paying client I'll apply the BISAC codes that are appropriate for the title -- not other sites does this either 😉
I have 9,300 more books for which these codes need to be applied. I will then update my top 10 lists to be based upon these codes -- making my life so much easier, while improving the discoverability of books 🙂
Metadata matters!