Throughout the years, Alejandro Colucci has created over one thousand illustrations worldwide.

The majority of which can be found in the book covers of Publishers based around multiple countries, such as Penguin Random House, Orbit, Walker Books, Angry Robot, Daw Books, Festa Verlag, Gollancz, Permuted Press, Robert Laffont, Piemme, Planeta, Valdemar, Quercus, RBA, Simon & Schuster, Tor, Solaris, Orion, Panini, Amazon / 47th North, Forge, Del Rey, Ballantine, Scholastic, Titan, Easton Press, Glénat, Printed in Blood, Skyhorse, White Wolf, Taschen and MacMillan.

Despite his extensive work on literary fields like historical or urban fiction, worldwide recognition comes from the themes of Fantasy, Horror and Science Fiction. The list of authors displaying Alejandro's work is notable and vast: Anne Rice, Robin Hobb, Mario Puzo, H.G. Wells, Ursula K. Le Guin, Andrzej Sapkowski, William Gibson, Clive Barker, J.G. Ballard, Edgar Allan Poe, Robert Louis Stevenson, Steven Erikson, etc.

His creative ability has also reached the world of music, film and theatre.

In 2014, Polka Theatre commissioned him the creation of the poster for the play Peter Pan.

In 2016, he created the artwork of the album Déjà Vu by prog-rock band Bad Dreams.

In 2017, he was invited by Printed in Blood Publishers to take part in The Thing: artbook, an illustrated tribute to the legendary 1982 film, with an introduction by horror filmmaker Eli Roth, and an afterword by the original director and master of horror John Carpenter.

Also in 2017, Alejandro worked on the conceptual art for the upcoming US movie Extreme.

In 2018, he started to work in the beautiful project Geralt de Rivia / The Witcher: The Illustrated Edition. The complete 9 Books in a new edition including around 60 new illustrations and new book covers to be published in 2021.

In 2019, he created the Tarot Z , a zombie / apocalyptic genre Deck, for the prestigious publisher Lo Scarabeo (Italy).

In 2020, he created a new deck: The Tarot V , this time about vampires, also for Lo Scarabeo.

He also returned to traditional painting to create some new stuff including an illustration for the James Cameron's Aliens new Art book by Titan Books / Printed in Blood to be published soon.

This 2021, he is working in the new illustrated edition of the classic The Worm Ouroboros, by E. R. Eddison.