Did you search by title or ISBN? If you search by title, the search goes through Google Books, which is very incomplete (since I didn't build a search database myself). If you put in an ISBN13 directly, you'll find a lot more books are included (I'd say you can only find 10-30% of books via the Google Books API)
It's a bit misleading I guess the way I added that feature.
Comments
Did you search by title or ISBN? If you search by title, the search goes through Google Books, which is very incomplete (since I didn't build a search database myself). If you put in an ISBN13 directly, you'll find a lot more books are included (I'd say you can only find 10-30% of books via the Google Books API)
It's a bit misleading I guess the way I added that feature.