Booksellers, publishers, librarians, and readers from around the globe gathered at the Javits Center in New York City for BookExpoAmerica (May 27-29) and BookCon (May 30-31). Children's publishers rolled out their biggest fall titles, and many authors and illustrators participated in signings, panels, and parties, making for an energizing five days of all things bookish.

Readers descended on the Javits Center for the first day of BEA, here decorated with a promotional poster for Putnam's forthcoming picture book Happy, based on the hit song by Pharrell Williams. Photo: Steve Kagan.

Brian Selznick signed books for fans at a party hosted by Scholastic at the Hudson Theater, to introduce the author’s October release, The Marvels. Photo: John A. Sellers.

From l., Melissa Posten, Heather Hibbert, Rachel Hochberg, and Libba Bray at an author reception given by Little, Brown. Photo: Natasha Gilmore.

Tad Hills signed the latest in his Rocket series for readers at the show. Photo: Diane Roback.

Eager attendees lined up at Disney’s booth for shields promoting the forthcoming Rick Riordan title Magnus Chase and the Gods of Asgard. Photo: Diane Roback.

Erin Stead (l.) and Philip Stead signed their new picture book, Lenny & Lucy (Roaring Brook/Porter, Oct.). Photo: Natasha Gilmore.

Anita Silvey shared copies of Untamed: The Wild Life of Jane Goodall (National Geographic, June). Photo: Natasha Gilmore.

Paul O. Zelinsky and Emily Jenkins autographed Toys Meet Snow (Random House/Schwartz and Wade, Sept.). Photo: Diane Roback.

Tony DiTerlizzi (l.) and Mo Willems with posters for Diva and Flea (Hyperion, Oct.). Photo: Steve Kagan.

James Dashner signed The Maze Runner and The Scorch Trials Collector’s Edition (Delacorte, Apr.). Photo: Steve Kagan.

Meg Medina autographed a copy of her YA novel, Yaqui Delgado Wants to Kick Your Ass (Candlewick, Mar. 2013) for WNDB social media manager Jennifer Baker as I.W. Gregorio looks on. Photo: Claire Kirch.

China was the guest of honor at this year’s BEA; here an exhibitor set up a display of Chinese picture books. Photo: Steve Kagan.

Author-illustrator Sandra Boynton signed a variety of titles at the show; here she is pictured with Frog Trouble (Workman). Photo: Steve Kagan.

Actor and author Julianne Moore greeted fans at a signing for her latest, Freckleface Strawberry: Backpacks! (Doubleday, July). Photo: Steve Kagan.

Eleanor Herman, during a signing for Legacy of Kings (Harlequin, Aug.). Photo: John A. Sellers.

Judy Blume (r.) with Carole Baron, who edited Blume's new novel for adults, In the Unlikely Event, just out from Knopf. Photo: Diane Roback.

Tom Angleberger signed his latest picture book, McToad Mows Tiny Island (Abrams, Sept.). Photo: Steve Kagan.

R.L. Stine (l.) and Marc Brown, in a joint appearance to promote their picture book, The Little Shop of Monsters (Little, Brown, Oct.). Photo: Steve Kagan.

Attendees could get their photo taken with Captain Underpants. Photo: Steve Kagan.

Norton Juster signed The Phantom Tollbooth (Random House). Photo: Steve Kagan.

Nathan Lane (r.) signs copies of his forthcoming picture book Naughty Mabel (Simon & Schuster, Oct.), with co-author Devlin Elliott (center) and illustrator Dan Krall (l.). Lane also served as master of ceremonies for the Children's Author Breakfast.

Sophie Blackall (l.) and Annie Barrows autographed copies of their Ivy and Bean series. Photo: Steve Kagan.

Ellen Oh, Jacqueline Woodson, and Phoebe Yeh after a We Need Diverse Books panel. Photo: Claire Kirch.

Macmillan Children’s Publishing Group staffers dolled up to host a party for bloggers.

Libba Bray got a little wild signing copies of Lair of Dreams (Little, Brown, Oct.). Photo: Claire Kirch.

The Cat in the Hat making a new friend. Photo: Diane Roback.

The crowds for autographing lines and panels at BookCon were epic from the start. Photo: Steve Kagan.

Matthew Van Fleet reading his new concept book, October the Octopus (S&S/Wiseman). Photo: Diane Roback.

Mike Curato (l.) and Nick Bruel creating a “snoctocorn” in their drawing contest. Credit: Diane Roback.

Two teen BookCon attendees, Amal Biskin (l.) and Nadira Novruzov, visit the PW booth. Photo: Rose Fox.

A reader tried to get in a chapter amid the chaos on the show floor. Photo: Diane Roback.

Deb Lucke signed copies of Lunch Witch (Papercutz. Mar.) for fans. Photo: Matia Burnett.

Attendee Emily Hamlin said she was especially looking forward to meeting Marissa Mayer. Photo: Natasha Gilmore.

Adi Alsaid autographing copies of Never Always Sometimes (Harlequin, Aug.). Photo: Diane Roback.

Illustrator Fred Koehler signed copies of One Day, The End (Short, Very Short, Shorter-Than-Ever Stories) (Boyds Mills, Oct.). Photo: John A. Sellers.

Jennifer Weiner’s interview with Judy Blume. Photo: Claire Kirch.

Readers shared their favorite titles as part of a social media campaign in the Macmillan booth. Photo: Natasha Gilmore.

One of the largest draws at BookCon was the panel of popular YouTubers-turned-authors. From left: Shane Dawson, Joey Graceffa, Justine Ezarik, and Connor Franta, with moderator Ann Shoket. Photo: Diane Roback.

The panel for the Paper Towns film, featuring author John Green (second from r.), packed the massive Special Events Hall. Photo: Claire Kirch.

Clockwise from lower left: Jojo, Jen, Julia, and Maddie all exclaimed they were looking forward to meeting Marie Lu and Rainbow Rowell. When a couple of them added Felicia Day, Jojo added: “I’m not in ANY of their fandoms.” Photo: Natasha Gilmore.