craiyon logo

An illustration of a coffee cup, an e-reader with a mystery book, and SQL code glowing on a window in a warm-toned cafe scene.

An illustration of a coffee cup, an e-reader with a mystery book, and SQL code glowing on a window in a warm-toned cafe scene.
Pro

Take a coffee break and dive into a fun mystery! This ebook series blends playful storytelling with practical SQL tips. Each short, suspenseful tale follows ordinary characters facing unusual challenges — and along the way, you’ll learn one SQL trick you can use right away. The books are designed to be simple, engaging, and affordable — each one priced like the cost of a coffee See more

More images like this

A steaming cup of coffee with 'Cross Coffee' written in the latte art foam, on a wooden table in a dimly lit cafe.

Pro

Zoom action
An ornate magnifying glass with a glowing, mystical center hovers over a vintage journal. Parisian rooftops and the Eiffel Tower are in the background under a crescent moon, with macarons and a pocket watch nearby. Text reads "CLUE" at the top.

Pro

Zoom action
A man with glasses reads an illustrated book in a cozy, dim library next to a steaming cup of coffee.

Pro

Zoom action
A young woman sits at a desk under a lamp, contemplating an open book and papers, in a dim, cozy room with bookshelves and a window showing city buildings at night. Drawing style.

Pro

Zoom action
A black widow spider clings to the side of a white coffee cup filled with a steaming latte featuring heart-shaped foam art, on a wooden table.

Pro

Zoom action
A painterly scene of an outdoor cafe with an orange umbrella, a steaming coffee mug on a table, and a receipt fluttering in the air, all in warm autumn tones.

Pro

Zoom action
A man sits at a wooden desk with books and antique instruments, studying by a sunlit window, with vintage maps on the wall.

Pro

Zoom action
A detailed overhead still life of various golden and silver clocks, teacups, flowers, books, and utensils arranged on a warm, illuminated beige surface, with a wooden shelf at the bottom.

Pro

Zoom action
A smiling blonde woman in a suit holds several diplomas in a library setting, with more diplomas floating around her.

Pro

Zoom action
A young woman with long brown hair reads a book in a cozy room at night, with a teacup and a full moon visible through the window. Digital illustration.

Pro

Zoom action
An illustrated young woman with curly red hair writes at a desk by lamplight and moonlight, surrounded by books.

Pro

Zoom action
A young girl with long dark hair sits cross-legged on a stack of books, intently reading a glowing book in a library setting. The title "MATILDA" is at the top of the image. Stylized illustration.

Pro

Zoom action
A close-up of a cappuccino with intricate goat latte art, next to a lit candle and potted ferns on a wooden table.

Pro

Zoom action
A young person with curly hair writes in a book at a wooden desk in a sunlit library, with a steaming mug and books nearby.

Pro

Zoom action
A frantic, wild-haired man screams as he furiously types on a vintage typewriter, surrounded by flying papers and books in a dimly lit study.

Pro

Zoom action
A towering stack of cassette tapes on a wooden desk, surrounded by scattered maps, all illuminated by a glowing vintage lamp.

Pro

Zoom action
Whimsical illustration of a chocolate castle on a cloud with flowing golden streams, set against a starry night sky, on a dark blue background, with the word CHOCOLATE in ornate gold lettering at the top.

Pro

Zoom action
A young man with brown hair studies intently at a wooden desk in a dimly lit library, under the glow of a green desk lamp. Books are stacked around him.

Pro

Zoom action
An interior illustration of a study room with a desk, books, and a window. A desk lamp illuminates an open book titled "BUILDING CODES," with a steaming mug nearby.

Pro

Zoom action
A steaming cup of latte art coffee sits on a wooden table next to scattered coffee beans and a spoon, illuminated by sunlight from a window.

Pro

Zoom action
A cup of matcha latte with latte art, a closed laptop, and an open notebook on a desk by a window overlooking a city.

Pro

Zoom action
An illustrated boy with dark hair writes in a book at a wooden desk with a lamp and globe, sunlight streaming from a window.

Pro

Zoom action
An open book with autumn leaves and a steaming cup on a wooden table, bathed in warm light.

Pro

Zoom action
A cute, anthropomorphic coffee cup with a happy face walks with arms and legs, surrounded by dumbbells and a jump rope on an orange background.

Pro

Zoom action
Split image contrasting knowledge and wisdom. Left: Man with magnifying glass. Right: Serene figure with owl and halo. Text 'KNOWLEDGE' and 'WISDOM'.

Pro

Zoom action
An anime-style illustration of a smiling college student with glasses, wearing a hoodie, sitting at a desk with books, a lamp, a laptop, and a steaming mug.

Pro

Zoom action
A four-panel storyboard. Top left: tired employees in a gray office. Top right: a young student at a computer. Bottom left: a man sitting on a couch. Bottom right: a glowing figure in a dreamlike sky with a 'Job Dating' sign.

Pro

Zoom action
A headless man in a dark suit with a glowing blue question mark for a head walks down a foggy, lamp-lit city street at night.

Pro

Zoom action
Photorealistic image of a steaming coffee cup with the number 20, coffee beans, and newspaper on a wooden cafe table.

Pro

Zoom action
A young woman with long brown hair and glasses reads a book in a warm, painterly style.

Pro

Zoom action
An open book displays two contrasting illustrations: a grayscale rainy park with a lone figure and a vibrant, sunny field with a picnicking family.

Pro

Zoom action
An illustration of a split scene: a determined male student studies by daylight on the left, an anxious female student works on a computer at night on the right.

Pro

Zoom action
A split image shows a man reading in a library and a couple looking intensely at each other in a dimly lit room with candles.

Pro

Zoom action
A stack of colorful books with various emojis on their spines sits on a wooden table in a dimly lit library, with a steaming mug beside them.

Pro

Zoom action
A sunlit desk with open books and a laptop showing garbled text, next to a window revealing a green landscape under a cloudy sky, in a painterly style.

Pro

Zoom action
An oil painting of a cozy still life with a lit lamp, steaming mug, open book, and burning candle, with a blanket in the background.

Pro

Zoom action
A miniature sailing ship floats in a steaming coffee cup on a wooden table with soft window light.

Pro

Zoom action
A man studies intently at a desk, illuminated by a lamp and candle, surrounded by books in a dimly lit library.

Pro

Zoom action
A distressed girl with spiral eyes and bandages on her face studies at a desk with books, coffee, and a chipmunk, lit by a desk lamp.

Pro

Zoom action
A group of seven people sitting around a large wooden table in a library, reading books together. There are stacks of books, teacups, and cookies on the table. Sunlight streams through a window.

Pro

Zoom action
A steaming cup of coffee with latte art on a wooden table with autumn leaves, coffee beans, and a spoon, bathed in warm sunlight.

Pro

Zoom action
A man with glasses in a brown sweater reads a newspaper at a wooden table with a steaming cup of coffee in a painterly style.

Pro

Zoom action
Steaming pumpkin spice latte with elaborate latte art in a rustic mug on a wooden table with spices.

Pro

Zoom action
An illustrated student with curly hair sits at a desk, writing in a journal bathed in warm sunlight from a window, surrounded by books and photos.

Pro

Zoom action
A symbolic stone staircase rises into a sunny, cloudy sky, with steps engraved 'Learn', 'Grow', 'Confidence', and 'Momentum'.

Pro

Zoom action
A man with glasses and a mustache sits at a cafe table with a laptop, typing. Papers and a coffee cup are on the table, with a Parisian street scene outside.

Pro

Zoom action
An anime-style woman with gray hair and a kind smile, wearing a white cardigan and blue shirt, sips tea in an office with a speech bubble saying 'Feel free to share your thoughts...'.

Pro

Zoom action
A smiling woman in a blue shirt holds a steaming coffee cup at a desk with books and chocolate in a library.

Pro

Zoom action
Steaming cappuccino with elegant latte art, surrounded by autumn maple leaves and shiny chestnuts on a sunlit wooden table.

Pro

Zoom action
A watercolor painting of the exterior of a cozy coffee shop with an "OPEN" sign and a "GRAND OPEN!" chalkboard. Steaming coffee cups are on outdoor tables.

Pro

Zoom action
A stylish young librarian with long wavy hair and glasses stands in a grand library, leaning on a desk with books.

Pro

Zoom action
Tiny ballerina dancing en pointe on latte art in a coffee cup, with steam and golden sparkles.

Pro

Zoom action
A woman in a turtleneck sweater sits in a cafe, holding a steaming mug, looking thoughtfully out the window at a bustling street. An open book is on the table.

Pro

Zoom action
A cute, steaming coffee cup with a cartoon face, decorated with a small green landscape, tiny houses, and wildflowers.

Pro

Zoom action
A vintage typewriter with the word 'ALTERING' on the paper, surrounded by ink bottles, quill pens, and scattered handwritten notes on a wooden desk. The scene is bathed in warm, soft light.

Pro

Zoom action
A smiling barista with brown hair, wearing a white shirt and black apron, holds a red cup of latte art in a cozy, detailed cafe.

Pro

Zoom action
A serene teenager reads a book in a sunlit armchair by a window, with a laptop on a table nearby, in a cozy, painterly illustration.

Pro

Zoom action
A young woman wearing a brown beret and cardigan sits in a chair, holding an open book and looking thoughtfully towards a sunlit window, surrounded by bookshelves.

Pro

Zoom action
An anime-style young man with glasses reads a book in a sunlit library, surrounded by globes and bookshelves.

Pro

Zoom action
Steaming cup of coffee with heart latte art on a sunlit wooden table, plants and books in background. Photorealistic style.

Pro

Zoom action
A cartoon girl with long black hair and big glasses sits surrounded by piles of books in a cozy library, reading an open book.

Pro

Zoom action
Young woman with long brown hair working on a silver laptop at a desk, with a coffee cup and plants, in a warm, painterly style.

Pro

Zoom action
A young woman with curly hair works on a laptop at a desk by a sunlit window, with books stacked beside her.

Pro

Zoom action
A photorealistic image of a grey house cat standing on a brass pepper grinder treadmill, grinding pepper in a rustic kitchen.

Pro

Zoom action
An open storybook displays two contrasting illustrations: a rainy city street with people under umbrellas on the left page, and a sunny park scene with children playing on the right page.

Pro

Zoom action
An illustrated woman with curly hair sits in an armchair surrounded by bookshelves and plants, bathed in soft light.

Pro

Zoom action
A steaming cup of coffee next to an open notebook and pen on a sunlit wooden table near a window with sheer curtains and a potted fern.

Pro

Zoom action
A detailed digital painting of a smiling waitress carrying a tray of coffee and pastries through a sunlit cafe.

Pro

Zoom action
A young woman with curly brown hair and glasses reads a book, bathed in warm sunlight streaming through window blinds.

Pro

Zoom action
A young boy resembling Sheldon Cooper sits in a vintage armchair, intently reading an "ADVANCED PHYSICS" book under a warm lamp light.

Pro

Zoom action
A dimly lit vintage study desk with two brass lamps, a dictation machine, papers, a book, and bookshelves in the background.

Pro

Zoom action
Art Nouveau illustration of a woman with long, flowing hair looking down while writing at a desk, with a speech bubble above her head.

Pro

Zoom action