BOSTON – Four questions. Four cups of wine. Four types of children. At Passover, the number four figures prominently in the rituals of the seder, the ceremonial holiday meal that can be mesmerizing and mystifying.

Four new delightful and brightly illustrated books for young kids will enliven – and help explain – the popular eight-day spring holiday, which this year begins on the evening of April 19. One features kids’ favorites from the long-running TV series “Sesame Street.”

‘A Seder for Grover’

A Seder fir Grover

• Joni Kibort Sussman; illustrated by Tom Leigh

• Kar-Ben; ages 1-4

In this first of four planned “Sesame Street” board books from Kar-Ben, publisher and children’s author Joni Kibort Sussman teams with longtime “Sesame Street” and Muppet book illustrator Tom Leigh to offer little ones an entertaining introduction to the Passover rituals and traditions.

The youngest kids and their grown-up readers will want to join Grover, Big Bird and their “Sesame Street” friends at Avigail’s Passover seder to eat matzah, read the haggadah and ask the Four Questions. Cookie Monster can come along, too – but only if he eats special Passover cookies. Grover tells his friends it’s good to invite guests to the seder. Even Moishe Oofnik the grouch is included.

‘Pippa’s Passover Plate’

Pippa's Passover Plate

• Vivian Kirkfield; illustrated by Jill Weber

• Holiday House; ages 4-8

In this lively, rhyming story, an adorable mouse named Pippa is preparing for the seder. She sets the table and stirs the chicken stew. But where’s the special shiny gold seder plate placed in the center of the table to display the ritual foods eaten at the ceremonial meal?

The kids will have fun as they follow Pippa in her search – from inside her house to the garden, fields and ponds outdoors. Along the way, the feisty Pippa asks for help from a cat, snake and wise owl, who are big and scary and make Pippa “cringe and quake.”

Author Vivian Kirkfield’s playful verse introduces kid to the seder rituals, while award-winning artist Jill Weber (“The Story of Passover”) puts readers in the scene with the cute gray and pink mouse. Her bright, large format illustrations are brightened with yellows and greens to match the springtime festival. The last page features Pippa’s Passover plate, which identifies all of the symbolic seder foods.

‘The Best Four Questions’

The Best Four Questions

• Rachelle Burk; illustrated by Melanie Florian

• Kar-Ben; ages 3-8

Marcy is the youngest child in the family who just learned to read, and it’s her turn to ask the Four Questions. But Marcy’s older brother, Jake, isn’t so happy to relinquish the ritual that has won him plenty of praise from his relatives. Marcy, a vivacious and inquisitive girl, turns down all offers of help to practice reciting the Four Questions.

Older kids may figure out that Marcy doesn’t realize she’s expected to read the traditional questions from the haggadah. She’s come up with her own questions all by herself. Here’s one: How many matzah balls in Grandma’s chicken soup? Read to see how the family and Jake react.

Rachelle Burke’s lively and engaging storytelling underscores the tenet of Passover that encourages participants to ask questions. Melanie Florian’s brightly colored animated illustrations capture Marcy’s enthusiasm for the festive holiday.

‘Matzah Belowstairs’

Matzah Belowstairs

• Susan Lynn Meyer; illustrated by Mette Engell

• Kar-Ben; ages 4-8

In Susan Lynn Meyer’s humor-filled tale, two families share a home in Apartment 4B, where they are eager to celebrate Passover. Young Eli Winkler is welcoming his human family’s guests to their seder in their “Abovestairs” apartment. Under the Winkler’s floor is the young Miriam Mouse and her mouse family, who live “Belowstairs” and occasionally enter the Winkler apartment through a tiny round mouse hole.

This year, the Winklers have stored their matzah in a tightly sealed tin box and Miriam Mouse hasn’t been able to find any stray pieces – not even crumbs – for her family’s holiday. When the determined Miriam crawls through her hole, she spies Eli’s father hiding the afikomen, the piece of matzah needed to conclude the seder meal. Who will find the hidden matzah first, Eli or Miriam Mouse? Kids will delight when Miriam Mouse finds the perfect solution for both families.

Mette Engell’s large and colorful illustrations provide readers the unusual view from the mouse perspective. In a double-page illustration, Eli is kneeling and wide eyed when he discovers Miriam under a bookcase with the afikomen wrapped in a bright blue napkin embroidered by his grandmother.

‘Shimri’s Big Idea: A Story of Ancient Jerusalem’

Shimri’s Big Idea: A Story of Ancient Jerusalem

Elka Weber; illustrated by Inbal Gigi Bousidan

Apples & Honey Press; ages 4-8

In this gracefully told story, Elka Weber takes kids back in time to ancient Jerusalem, where a curious boy named Shimri is told he’s too young and small to help his older and bigger family members plow the fields and draw water from the faraway well. But His Grandma Eliora reassures him that “big ideas can come from small mouths,” and urges him to look closely and listen.

Shimri learns that King Hezekiah is looking for ideas on how to bring water inside the city’s walls and wonders if the king will listen to a small boy’s solution to the problem. Weber’s timeless, folk-style tale  will strike a chord for young readers who will share Shimri’s frustration.

The warm desert tones of Inbal Gigi Bousidan’s illustrations evoke the landscape and lifestyle of ancient Jerusalem. An author’s note explains the fictional story is inspired by Hezekiah’s Tunnel, which was dug during the eighth century BCE, an engineering feat for its time.