52 books for zdufran!

One of my life goals has been to read 52 books in a year, but I figured I would be retired before I got to that level. My previous high was 38 books in 2012, but it looks like I am on pace to finish 52 books in 2018!

Question for the avid readers and counters out there:
Do you have a minimum page limit for what counts as a book? I am trying to decide whether to count books that are less than 150 pages.

Here are my books thus far:
River of Teeth - Sarah Gailey
Obama: An Intimate Portrait - Pete Souza
Parable of the Sower - Octavia Butler
Crump - J. Blackshear
The Obelisk Gate - N.K. Jemisin
Station Eleven - Emily St. John Mandel
Parable of the Talents - Octavia Butler
Go - Kazuki Kaneshiro
Noughts & Crosses Graphic Novel - Malorie Blackman
Fire and Fury - Michael Wolff
The Hate U Give - Angie Thomas
So You Want To Talk About Race - Ijeoma Oluo
How to Create Your Own African American Library - Dorothy L. Ferebee
The 5th Wave - Rick Yancey
Dear Martin - Nic Stone
The Left Hand of Darkness - Ursula K. Le Guin
Born a Crime - Trevor Noah
Bandwidth - Eliot Peper
Heir to the Jedi - Kevin Hearne
His Needs, Her Needs - Willard Harley Jr.
A Higher Loyalty - James Comey
Fascism: A Warning - Madeleine Albright
Only Dead on the Inside - James Breakwell
Stand Your Ground - Caroline Wright
Redshirts - John Scalzi
The Last Black Unicorn - Tiffany Haddish
A River in Darkness - Masaji Ishikawa
The Stone Sky - N.K. Jemisin
Yes we (still) can - Dan Pfeiffer
The Genius Plague - David Walton
The Feather Thief - Kirk Wallace Johnson
Answering Why - Mark Perna
Binti - Nnedi Okorafor
Taste of Marrow - Sarah Gailey
Babel-17 - Samuel R. Delaney
Binti: Home - Nnedi Okorafor
Binti: The Night Masquerade - Nnedi Okorafor
The Kite Runner - Khaled Hosseini
Fear: Trump in the White House - Bob Woodward
The Measure of a Man - Martin Luther King Jr
Little Slaughterhouse on the Prairie - Harold Schechter
Retrograde - Peter Cawdron
Operation Columba - Gordon Corera
Tears We Cannot Stop - Michael Eric Dyson
Men Explain Things To Me - Rebecca Solnit
Spirit Dive - Michael Cottman
The Ways of Black Folks - Lawrence Ross Jr.

In addition, I listened to one audiobook this year, but I am not counting it.

48. Men are from Mars by John Gray
49. Roadside Picnic by Arkady Strugatsky
50. The Rule of One by Ashley Saunders and Leslie Saunders
51. Oedipus Rex by Sophocles

I suspect I'll finish the year with 53 books read.

52. The Light of Fireflies by Paul Pen

I met my goal! I'll probably read 1-2 more books before the end of the year.