Books included in the British Library Crime Classics series. Available in the U.S. from Poisoned Pen Press. Not necessarily the BLCC edition - ebooks where available.

Books not on Open Library but freely available as e-books at https://archive.org/ or elsewhere.

Books I enjoy a lot, if not quite as much as my Five-star favorites. Great reads.

Books that I feel aren't great but still enjoyable. Good reads.

Books and authors recommended by my favorite mystery Bloggers. Here's a partial list of blogs and websites in no particular order:

A Crime is Afoot
https://jiescribano.wordpress.com/

In Search of the Classic Mystery Novel
https://classicmystery.blog/

Cross Examining Crime
https://crossexaminingcrime.wordpress.com/

The Invisible Event
https://theinvisibleevent.com/

Beneath the Stains of Time
https://moonlight-detective.blogspot.com/

Ah Sweet Mystery blog
https://ahsweetmystery.com/

The Passing Tramp
https://thepassingtramp.blogspot.com/

Do You Write Under Your Own Name?
https://doyouwriteunderyourownname.blogspot.com/

The Green Capsule
https://thegreencapsuleblog.wordpress.com/

Witness To The Crime
https://witnesstothecrime.wordpress.com/

Furrowed Middlebrow
https://furrowedmiddlebrow.blogspot.com/

A Hot Cup of Pleasure
https://ahotcupofpleasureagain.wordpress.com/

The Grandest Game
https://grandestgame.wordpress.com/

Mysteries Ahoy
https://mysteriesahoy.com/

My Readers Block
https://myreadersblock.blogspot.com/

Bitter Tea and Mystery
https://bitterteaandmystery.blogspot.com/

Happiness is a Book
https://happinessisabook.com/

Jason Half: blog
https://www.jasonhalf.com/blog/

Golden Age of Detection
http://gadetection.pbworks.com/

Mystery Scene Magazine
https://www.mysteryscenemag.com/

Mystery File
https://mysteryfile.com/blog/

Never or seldom updated, but still great:

Countdown John's Christie Journal
https://cjcjcountdownjohnschristiejournal.wordpress.com/

Suddenly at His Residence
https://suddenlyathisresidence.code.blog/

Dead Yesterday
https://deadyesterday.wordpress.com/

Classic Mysteries
https://www.classicmysteries.net/

A Guide to Classic Mystery and Detection
http://mikegrost.com/classics.htm

Pretty Sinister Books
https://prettysinister.blogspot.com/

Gone but not forgotten:

Clerical Detectives
https://web.archive.org/web/20221107003513/https://detecs.org/intro.html

Names, titles, and covers worth remembering

Books I love

Books and authors I don't want to read again, because I found them overly boring, irritating, offensive, upsetting, or depressing. Not necessarily a comment on the books' objective qualities.

Duplicate author entries to merge

Authors whose works are strongly influenced by the antiquarian ghost stories of Montague Rhodes James. Based on the list first published by Jamesian scholar Rosemary Anne Pardoe in 1991, with updates at the Wormwoodiana blog:
https://wormwoodiana.blogspot.com/2021/11/a-chronology-of-writers-in-m-r-james.html

Public-domain books to try that don't require waiting lists or short-term checkout

Members of The Detection Club up to the '50s and '60s.
Taken from https://crimereads.com/the-detection-club-and-the-mid-century-fight-over-fair-play-in-crime-fiction/

Books I actively dislike. Objectively and subjectively bad.

A spin-off from the successful British Library Crime Classics series.

https://bearalley.blogspot.com/2018/10/british-library-classic-thrillers.html