Invincible combines silver age fun with a modern sensibility in one of the best superhero titles of recent years.
- Invincible Presents. vol. 1: Atom Eve & Rex Splode
- Reprints Invincible Presents: Atom Eve #1-2 (December 2007 – March 2008) & Invincible Presents: Atom Eve & Rex Splode #1-3 (October 2009 – December 2009).
Despite the publication dates of these stories, they are prequels to the main tale of Invincible. - Tech Jacket, vol. 1: The Boy From Earth
- Reprints Tech Jacket #1-6 (November 2002 – April 2003)
Occurs slightly before Invincible: Family Matters, but can be read at any point prior to Invincible: A Different World. 
Invincible, vol. 1: Family Matters- Reprints Invincible #1-4 (January 2003 – April 2003).
- Invincible Vol. 2: Eight is Enough
- Reprints Invincible #5-8 (June 2003 – January 2004).
- Invincible Vol. 3: Perfect Strangers
- Reprints Invincible #9-13 (February 2004 – May 2004).
- Invincible, vol. 4: Head Of The Class
- Reprints Invincible #14-19 (June 2004 – November 2004) and Image Comics Summer Special (April 2004).
- Brit, vol.1: Old Soldier
- Reprints Brit #1 (July 2003), Brit: Cold Death #1 (December 2003); & Brit: Red, White, Black and Blue #1 (August 2004).
- Invincible, vol. 5: The Facts Of Life
- Reprints Invincible #0, 20-25 (April 2005; January 2005 – August 2005; backup story only from #25).
Contains a brief crossover with what appears to be the universe of Y: The Last Man. - Invincible, vol. 6: A Different World
- Reprints Invincible #25-30 (August 2005 – April 2006; lead story only from #25).
- Invincible, vol. 7: Three’s Company
- Reprints Invincible #31-35 (April 2006 – September 2006) and The Pact #4 (January 2006).
- Marvel Team-Up, vol. 3: League of Losers
- Reprints Marvel Team-Up #14-18 (January 2006 – May 2006).
This volume features an Invincible story that occurs during Three’s Company. It also crosses over with the Marvel Universe. - Invincible, vol. 8: My Favorite Martian
- Reprints Invincible #36-41 (October 2006 – May 2007)
- Capes, vol.1: Punching the Clock
- Reprints Capes #1-3 (September 2003 – November 2003) and back-up stories from Invincible #27-31 & #34-41 (November 2005 – April 2006 & July 2006 – May 2007).
- Invincible, vol. 9: Out Of This World
- Reprints Invincible #42-47 (June 2007 – December 2007)
- Invincible, vol. 10: Who’s The Boss?
- Reprints Invincible #48-53 (February 2008 – October 2008)
- Brit, vol.2: AWOL
- Reprints Brit #1-6 (August 2007 – May 2008).
- Brit, vol.3: FUBAR
- Reprints Brit #7-12 (June 2008 – January 2009).
- Astounding Wolf-Man, vol. 1
- Reprints The Astounding Wolf-Man #1-7 (May 2007 – July 2008)
Invincible, vol. 11: Happy Days- Reprints Invincible #54-59 (October 2008 – February 2009) and Astounding Wolf-Man #11 (December 2008).
- Astounding Wolf-Man, vol. 2
- Reprints Astounding Wolf-Man #8-12 (September 2008 – January 2009), Invincible #57 (December 2008) and Monster Pile-Up #1 (August 2008).
- Invincible, vol. 12: Still Standing
- Reprints Invincible #60-65 (March 2009 – August 2009).
- The Astounding Wolf-Man, vol. 3
- Reprints Astounding Wolf-Man #14-20 (April 2009 – December 2009).
- Invincible, vol. 13: Growing Pains
- Reprints Invincible #66-70 (September 2009 – February 2010) and Invincible Returns #1 (April 2010).
- Astounding Wolf-Man, vol. 4
- Reprints Astounding Wolf-Man #21-25 (February 2010 – November 2010).
- Invincible, vol. 14: The Viltrumite War
- Reprints Invincible #71-78 (April 2010 – March 2011).
- Guarding the Globe, vol.1: Under Siege
- Reprints Guarding the Globe #1-6 (August 2010 – January 2011).
Occurs in parallel with The Viltrumite War. - Tech Jacket, vol.2: Lift Off
- Reprints Tech Jacket Digital #1-3 (all January 2014) & Invincible #71-75, 77-78 & 80 (Tech Jacket stories only; April 2010 – November 2010, February 2011 – March 2011 & June 2011).
Occurs in parallel with The Viltrumite War. - Invincible, vol. 15: Get Smart
- Reprints Invincible #79-84 (April 2011 – October 2011).
- Guarding the Globe, vol.2: Hard to Kill
- Reprints Guarding the Globe (volume 2) #1-6 (September 2012 – February 2013).
- Invincible, vol.16: Family Ties
- Reprints Invincible #85-90 (November 2011 – April 2012).
- Invincible, vol.17: What’s Happening
- Reprints Invincible #91-96 (May 2012 – October 2012).
- Invincible, vol.18: The Death of Everyone
- Reprints Invincible #97-102 (November 2012 – April 2013).
- Invincible Universe, vol.1: On Deadly Ground
- Reprints Invincible Universe #1-6 (April 2013 – September 2013).
- Invincible Universe, vol.2: Above the Line
- Reprints Invincible Universe #7-12 (October 2013 – April 2014).
- Invincible, vol.19: The War at Home
- Reprints Invincible #103-108 (June 2013 – January 2014).
- Invincible, vol.20: Friends
- Reprints Invincible #109-114 (March 2014 – September 2014).
- Invincible, vol.21: Modern Family
- Reprints Invincible #115-120 (November 2014 – May 2015).
- Invincible, vol.22: Reboot?
- Reprints Invincible #121-126 (July 2015 – December 2015).
- Invincible, vol.23: Full House
- Reprints Invincible #127-132 (April 2016 – January 2017).
- Invincible, vol.24: The End of All Things, part 1
- Reprints Invincible #133-138 (February 2017 – June 2017).
- Invincible, vol.25: The End of All Things, part 2
- Reprints Invincible #139-144 (August 2017 – February 2018).
An even more detailed breakdown of Invincible‘s Reading Order,
can be found in the comments below. Thanks very much for your contribution, Leon.
To page by page.
Super Patriot 1-4
Atom Eve & Rex Spode
Tech Jacket 1-8
Brit 1
Invincible 1-6
Brit 2
Invincible 7-15
Image Comics Summer Special
Capes Inc 1-3 start – page 19
Brit 3 pages 1-18
Invicible 16 pages 1-6
Brit 3 pages 7-32
Invincible 16 pages 7-10
Brit 3 pages 33-36
Invincible 16 pages 11-end
Capes Inc 3 pages 20-end
Brit 3 Epilogue
Invincible 17-24
Origins 1
Invincible 25-30
Capes Inc 4
Invincible 31-33 start – page 8
Marvel Teamup 14
Invincible 33 page 9-end
Invincible 34 – 35
Wolfman 1 pages 1-2
The Pact 1
Invincible 36-38
Wolfman 1 pages 3-8
Invincible 39-42
Wolfman 1 pages 9-end
Invincible 43-45
Wolfman 2
Brit 1-2
Wolfman 3
Invincible 46-47
Brit 3-6
Wolfman 4
Brit 7-12
Invincible 48-50
Wolfman 5-10
Invincible 51-55
Invincible 66 start to 7
Incincible 56-57
Wolfman 11-13 page 15
Invincible 58-59
Invincible 66 page 8-end
Invincible 67 start – page 7
Wolfman 13 page 16-end
Wolfman 14-15 page 7
Invincible 60 start to page 2
Tech Jacket Digital 1 start to page 2
Wolfman 15 page 8
Invincible 60 pages 3 – 5
Wolfman 15 pages 9-10
Invincible 60 page 6
Tech Jacket Digital 1 pages 3-4
Invincible 60 pages 7-8
Tech Jacket Digital 1 pages 5-10
Invincible 60 pages 9-end
Tech Jacket Digital 1 pages 11-13
Invincibe 61-64
Invincible 67 pages 8-13
Invincible 65
Wolfman 15 pages 11-end
Wolfman 16-18
Invincible 67 pages 14-end
Tech Jacket Digital 1 pages 14-end
Tech Jacket Digital 2-3 to page 17 and page 20
Invincible 68
Wolfman 19-21
Invincible 69-70
Invincible Returns 1
Tech Jacket Digital 3 pages 18-19
Invincible 71 start – page 2
Guarding the Globe 1 start – page 4
Invincible 71 page 3-5 (same as Guarding the Globe 1 pages 3 to 5)
Invincible 71 page 6-16
Guarding the Globe 1 page 6-7
Wolfman 22-23 page 9
Guarding the Globe 1 pages 8-13
Wolfman 23 pages 10-14
Guarding the Globe 1 pages 14-15
Wolfman 23 pages 15-end
Wolfman 24 to 25 page 24
Guarding the Globe 1 pages 16-end
Invincible 71 pages 17-end
Invincible 72 – 73 – page 8
Guarding the Globe 2 – 3 – page 7
Wolfman 25 pages 25 – end
Guarding thr Globe 3 pages 8 – end
Invincible 73 pages 9 – 15
Guarding the Globe 4
Invincible 73 pages 16 – 18
Guarding the Globe 5 start – page 8
Invincible 73 pages 19 – end
Guarding the Globe 5 pages 9 – 12
Invincible 74
Guarding the Globe 5 pages 13 – end
Guarding the Globe 6 start – page 15
Invincible 75
Invincible 76 start – page 13
Guarding the Globe 6 pages 16 – end
Invincible 76 pages 14 – end
Invincible 77 – 92
Guarding the Globe (2) 1
Invincible 93 – 100 page 5
Guarding the Globe (2) 2 to page 18
Invincible 100 page 6 – 23
Invincible Universe 1 – page 2 (same as Invincible pages 22 – 23)
Invincible Universe 1 page 3 – 7
Invincible 100 page 24 – end
Invincible 101 – page 14
Guarding the Globe (2) 2 page 19 – end
Guarding the Globe (2) 3 – 6 page 21
Invincible Universe 1 page 8 – 14
Guarding the Globe (2) page 22 – end
Invincible 101 page 15 – en~
Invincible 102
Invincible Universe 1 page 15 – end
Invincible Universe 2 – 5 page 12
Invincible 103 – 105 page 4
Invincible Universe 5 page 13
Invincible 105 page 5 – 10
Invincible Universe 5 page 14 – end
Invincible 105 page 11 – 12
Invincible Universe 6
Invincible 105 page 13 – end
Invincible 106
Invincible Universe 7
Invincible 107 – page 18
Invincible Universe 8 – 9
Tech Jacket 1 to 11
Tech Jacket 12 pages 8 – 11
Invincible Universe 10 – 12
Invincible 107 page 19 – end
Invincible 108 – 122
Tech Jacket 12 pages 1 – 7, 14 – end
Invincible 123 – 144
why is brit repeated?
I am not the writer of that reply, so I can’t say for sure, but I believe there were two Brit miniseries, the first numbered 1-3 and the second 1-12