Thanks Kovid.
Here the log info:
Code:
#################### Log for Unknown ####################
Running identify query with parameters:
{'title': None, 'authors': None, 'identifiers': {'isbn': '9781528879552'}, 'timeout': 30}
Using plugins: Goodreads (1, 7, 8), Google (1, 1, 1), Amazon.com (1, 3, 5)
The log from individual plugins is below
****************************** Goodreads (1, 7, 8) ******************************
Found 0 results
Downloading from Goodreads took 1.048785924911499
identify - start. title=None, authors=None, identifiers={'isbn': '9781528879552'}
get_goodreads_id_from_identifiers - isbn=9781528879552
get_goodreads_id_using_api - identifiers=9781528879552
Querying using autocomplete API: https://www.goodreads.com/book/auto_...=9781528879552
JSON Result: b'[]'
Result using autocomplete API: None
Insufficient metadata to construct query
********************************************************************************
****************************** Google (1, 1, 1) ******************************
Found 0 results
Downloading from Google took 3.8446710109710693
Making query: https://books.google.com/books/feeds...ewability=none
No results found, doing a web search instead
Making query: https://www.google.com/search?q=9781528879552&tbm=bks
Failed to find any results on results page, with title: 9781528879552 - Google Search
********************************************************************************
****************************** Amazon.com (1, 3, 5) ******************************
Found 0 results
Downloading from Amazon.com took 0.8946192264556885
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0
Server: auto
Making google query: https://www.google.com/search?q=%289...www.amazon.com
Failed to find any results on results page, with title: (9781528879552 or 978-1528879552) site:www.amazon.com - Google Search
No search engine results for terms: (9781528879552 OR 978-1528879552)
Trying the bing search engine instead
Making bing query: https://www.bing.com/search?q=%28978...www.amazon.com
Failed to find any results on results page, with title: (9781528879552 or 978-1528879552) site:www.amazon.com - Search
No search engine results for terms: (9781528879552 OR 978-1528879552)
No matches found with query: ['(9781528879552', 'OR', '978-1528879552)']
********************************************************************************
The identify phase took 4.03 seconds
The longest time (3.844671) was taken by: Google
Merging results from different sources
We have 0 merged results, merging took: 0.00 seconds
Failed to download metadata for Unknown
****************************** Goodreads Covers ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Edg/87.0.664.75')]
Failed to download valid cover
Took 0.9695470333099365 seconds
No cached cover found, running identify
identify - start. title=None, authors=None, identifiers={'isbn': '9781528879552'}
get_goodreads_id_from_identifiers - isbn=9781528879552
get_goodreads_id_using_api - identifiers=9781528879552
Querying using autocomplete API: https://www.goodreads.com/book/auto_...=9781528879552
JSON Result: b'[]'
Result using autocomplete API: None
Insufficient metadata to construct query
No cover found
********************************************************************************
****************************** Google Images Covers ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36')]
Failed to download valid cover
Took 5.9604644775390625e-06 seconds
********************************************************************************
****************************** Amazon.com Covers ******************************
Request extra headers: [('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8'), ('Upgrade-insecure-requests', '1'), ('Referer', 'https://www.bing.com/search?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com'), ('User-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.146 Safari/537.36')]
Downloaded cover: 348x522
Took 14.320723056793213 seconds
No cached cover found, running identify
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Server: auto
Making google query: https://www.google.com/search?q=%289...www.amazon.com
Failed to find any results on results page, with title: (9781528879552 or 978-1528879552) site:www.amazon.com - Google Search
No search engine results for terms: (9781528879552 OR 978-1528879552)
Trying the bing search engine instead
Making bing query: https://www.bing.com/search?q=%28978...www.amazon.com
Ignoring 'Amazon.com' as it has no cached page
Skipping non-book result: Result(url='https://www.amazon.com/books-used-books-textbooks/b?node=283155', title='Amazon.com: Books', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=5004500508028420&mkt=en-US&setlang=en-US&w=sJnZpcgz7vTjyL4B3PEbqVoa0naUF-Ct')
Skipping non-book result: Result(url='https://www.amazon.com/b?node=17495918011', title='Amazon.com: Kindle Books', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=4793553187700786&mkt=en-US&setlang=en-US&w=r5LJgRReKJuD2wPFGfikTxycavILXKFm')
Skipping non-book result: Result(url='https://www.amazon.com/', title='Amazon.com. Spend less. Smile more.', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=5013004549898064&mkt=en-US&setlang=en-US&w=28SLGHztWhDnptgZ4HJP0gcv0bfvCntD')
Skipping non-book result: Result(url='https://www.amazon.com/gp/help/customer/display.html%3FnodeId%3DG6LDPN7YJHYKH2J6', title='Amazon Prime - Amazon Customer Service', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=4910999075238841&mkt=en-US&setlang=en-US&w=SqRrrTjBzby5Q6QKtLFaArDaBQiscEGS')
Skipping non-book result: Result(url='https://www.amazon.com/Kindle-eBooks/b?node=154606011', title='Kindle eBooks | Amazon Smile', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=4962590223040877&mkt=en-US&setlang=en-US&w=N4MFCkBLrnLQuZj7cVUhV1myxyeS4kMq')
Skipping non-book result: Result(url='https://www.amazon.com/amazonprime', title='Amazon.com: Amazon Prime', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=4801593373434107&mkt=en-US&setlang=en-US&w=hPAk__p3LSeHgz8VT_KirJC6H3YSEOvB')
Skipping non-book result: Result(url='https://www.amazon.com/kindle-dbs/hz/bookshelf/prime', title='Prime members access free eBooks, audiobooks, …', cached_url='https://cc.bingj.com/cache.aspx?q=%289781528879552+or+978-1528879552%29+site%3Awww.amazon.com&d=4537886672113239&mkt=en-US&setlang=en-US&w=hn2sIfIzh7QPl_UZnqN91P3MSJTPXPzo')
Downloading details from: https://cc.bingj.com/cache.aspx?q=%2...o7EGB8rlNzqC-f
Downloading details from: https://cc.bingj.com/cache.aspx?q=%2...9kvdc2z7gblr0N
Downloading cover from: https://m.media-amazon.com/images/I/...7L._SY522_.jpg
********************************************************************************
****************************** Open Library Covers ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko')]
Failed to download valid cover
Took 0.9919159412384033 seconds
No cover for ISBN: '9781528879552' found
********************************************************************************
****************************** Big Book Search Covers ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36')]
Failed to download valid cover
Took 3.814697265625e-06 seconds
********************************************************************************
It looks like the listed sources do not have this ISBN.
Can I add sources to calibre? And which sources are particularly good for these kind of ISBNs (Audiobooks)?