PART OF the lifeblood of Small Press Expo, running this weekend in suburban Washington, is the debut of new books, be they humor, horror, memoir or anthology. And some publishers and creators reliably return for the annual chance to spotlight their books before thousands of expo goers.

“I’ve been attending SPX since 2000, but I’ve been exhibiting as a publisher since 2010,” area publisher Joe Procopio tells The Post’s Comic Riffs. “Lost Art Books is celebrating its fifth anniversary as a publisher with the 2015 SPX, having debuted with our first three titles at the 2010 SPX. We’ve now published over 10 titles.”

And for this year, Procopio says Lost Arts Books — as part of what he describes as “passion publishing” — is debuting “our new two-volume set,  ‘Kremos: The Lost Art of Niso Ramponi,’ on Italian cartoonist/illustrator/animator Niso Ramponi, better known by his penname, Kremos.” (Lost Art Books, the flagship series from Picture This Press, publishes and preserves the work of past masters.)

Another Small Press Expo regular is Emmy-winning creator and editor Dean Haspiel, who comes down from Brooklyn to feature new works.

“Hang Dai Editions is proud to debut three graphic novels at SPX that represents our side of the New York comics tracks, where semi-autobio converges with superhero ambiance and fine art,” Haspiel tells Comic Riffs. “I’m personally proud to finally furnish ‘Beef With Tomato,’ my love letter to NYC, and help shepherd the late Seth Kushner’s ‘Schmuck’ into fruition, alongside Hang Dai co-founder Gregory Benton and his beautifully mute book, ‘Smoke.’ ”

And Harvey Award-nominated cartoonist/editor Matt Dembicki also comes to SPX with multiple works.

” ‘Captive of Friendly Cove: Based on the Secret Journals of John Jewitt’ (Fulcrum Publishing) is a historical graphic novel about a teenager’s capture by the Mowachaht people [near today’s Vancouver] in 1803,” Dembicki tells Comic Riffs. “I worked on it with three other local comics folks: Rebecca Goldfield, Mike Short and Evan Keeling.

“I’ll also have the self-published ‘Stella in Space and Time,’ which is a kids’ mini-comic I did with local writer Tina Seasmonster,” Dembicki continues. “It’s about an 8-year-old squid who is about to follow in her grandmother’s footsteps into traveling into different dimensions.”

To see the full list of hundreds of new books at SPX, just click HERE.

Small Press Expo continues today at the Marriott Hotel and Conference Center in North Bethesda;