Bookstore
Books by
Antonio Colomba
The method, the horror, the puzzles, and the coloring pages.
Every book in one place — the mindset method, three Halloween story collections for Kindle, puzzle books, coloring books, flash cards, and deluxe editions. New titles are in Amazon review and will be linked here the moment they're live.
Featured
The book behind the Brain Shift app.
Second edition · Mindset
The Brain Shift Method
Seven phrases of change
Most of the behavior you want to change is not a single bad decision. It is a loop: a trigger, a response, a quick payoff, and a cost that arrives late. The Brain Shift Method is a short daily practice that turns the loop around — until the response you want fires before the old one can. No streaks. No scores. No device watching you.
The details are in the book. That's where they belong.
Horror — Kindle Editions
Three Halloween collections. Thirteen stories each. Read one a night through October.
Kindle ebook
Trick or Treat: 13 Horror Stories for Halloween Night
Thirteen tales to read after dark
Thirteen original horror stories — haunted houses, folk horror, small-town dread, ghost stories, and one brush with the cosmic. Dread-forward, not gore for shock's sake.
Buy on Amazon
Kindle ebook
Trick or Treat: 13 Horror Stories for Teens
Thirteen tales for the bravest readers in the room
Thirteen original horror stories for teenage readers — closing shifts, viral dares, basement shows, Saturday detention. Every protagonist is 14 to 18, every story complete, with at least one moment that will make you check the locks.
Buy on Amazon
Kindle ebook · Ages 7–12
Trick or Treat: 13 Spooky Halloween Stories for Kids
Thirteen spooky stories. Zero nightmares.
Thirteen Goosebumps-style Halloween adventures for ages 7–12 — a talking pumpkin, a gummy bear that grows when you say "yummy," a midnight skeleton parade. Real spooky moments, safe endings where the kid wins.
Buy on AmazonPuzzle Books
From kids' first sudoku to serious brain training. Every puzzle machine-verified, full solutions in the back.
Paperback · Ages 6–10
Puzzle Party
Sudoku · Number Logic · Kakuro · Mazes · Words & More
90 kid-friendly puzzles — mini sudoku, Number Logic, kakuro, crosswords, word searches, mazes, and more, 10 of each — with simple how-to pages and full solutions. Perfect for road trips, rainy days, and clever kids.
Buy on Amazon
Paperback
The Big Book of Puzzles
90 Brain-Teasing Puzzles · Sudoku · Crosswords · Word Searches · Number Logic · Kakuro · Mazes & More
Nine puzzle types, ninety puzzles, zero boredom — the ultimate variety pack for puzzle lovers, one puzzle per page in a big easy-on-the-eyes format. Ideal for daily brain exercise, travel, and gifts.
Available on Amazon soon
Paperback · Large print
Large Print Sudoku for Seniors
100 Easy-to-Read Puzzles for Sharp Minds
100 sudoku printed one-per-page with extra-large grids and big, bold numbers — no squinting needed. 50 easy, 35 medium, 15 hard, every puzzle computer-verified. A thoughtful gift for parents and grandparents.
Available on Amazon soon
Paperback · Large print
Word Search for Adults
100 Large Print Puzzles Across 100 Fun Themes
100 large-print word searches, each on its own theme — Italian cooking, classic rock, national parks, old Hollywood. Big readable letters, ten hidden words per puzzle, full solutions with highlighted answers.
Available on Amazon soon
Paperback · Brain training
Number Logic Puzzles for Adults
100 Brain-Training Math Puzzles
100 Number Logic puzzles — the arithmetic-meets-logic game where every cage's numbers must combine to its target. From quick 4×4 warm-ups to deep 6×6 thinkers, every puzzle computer-verified for a unique solution.
Available on Amazon soon
Paperback · Brain training
Kakuro Puzzles for Adults
100 Addictive Cross-Sum Logic Puzzles
100 cross-sum puzzles: fill the white cells with digits 1–9 so every run adds up to its clue — no repeats. From gentle 7×7 grids to serious 9×9 challenges. If sudoku feels too easy, kakuro is your next obsession.
Available on Amazon soonColoring Books
Ten titles, from friendly animals to autumn whimsy to intricate adult mandalas.
Paperback · Ages 4–8
Wild Animals Coloring Book
70 Fun Animal Designs to Color
70 wild animal designs — lions, elephants, cheetahs, gorillas — each on its own 8.5" × 11" page with bold, kid-friendly outlines. Perfect for road trips, rainy days, and classrooms.
Buy on Amazon
Paperback · Ages 4–8
Safari Friends Coloring Book
29 Safari Animals to Color
29 safari animals drawn with bold, simple outlines perfect for little hands. A fun-sized book for travel, quiet time, and gifts for kids who love animals.
Buy on Amazon
Paperback · Ages 3–7
Farm Friends Coloring Book
46 Farm Animals to Color — Cows, Horses, Pigs & More
46 friendly farm animals on big, cheerful 8.5" × 11" pages made for young colorists. A barnyard of fun for rainy days, classrooms, and little farmers everywhere.
Buy on Amazon
Paperback · Adults
Botanical Mandalas
An Adult Coloring Garden — 50 Intricate Flower & Leaf Mandalas
50 intricate flower-and-leaf mandalas, each printed single-sided in a generous 8.5" × 8.5" square format — color with markers or gel pens without bleed-through. Every design a small meditation.
Buy on Amazon
Paperback · Adults
Haunted Halls
An Adult Coloring Book of Spooky Mansions & Friendly Phantoms
19 spooky scenes — creaky mansions, shadowy corridors, phantoms of the friendlier sort — each printed single-sided. A slim seasonal treat at a treat-sized price.
Buy on Amazon
Paperback · Adults
Pumpkins & Autumn Whimsy
An Adult Coloring Book of Harvest Magic & Cozy Fall Nights
19 pumpkin-packed designs — grinning jack-o'-lanterns, cozy harvest scenes, whimsical autumn magic — each printed single-sided. Made for crisp October afternoons.
Buy on Amazon
Paperback · Adults
Skeletons & Creatures of the Night
A Halloween Coloring Book for Grown-Ups
17 eerily fun designs — dancing skeletons, graveyard ghouls, midnight beasts — each printed single-sided. For grown-ups who like their October with a little backbone.
Buy on Amazon
Paperback · Adults
The Witching Hour
An Adult Coloring Book of Witches, Potions & Gothic Charm
17 bewitching designs — witches, black cats, bubbling potions, haunted villages — each printed single-sided. Light a candle and color your way through midnight.
Buy on Amazon
Paperback · Adults
Vintage Botanicals
An Adult Coloring Book of Antique Flower Engravings
30 antique flower engravings, carefully restored into crisp black line art — each on its own large 8.5" × 11" page, printed single-sided so markers won't bleed through. Frame your favorites when done.
Buy on Amazon
Paperback · Ages 4–8
Safari Babies Coloring Book
30 Adorable Baby Animals to Color for Kids Ages 4-8
30 big, bold, easy-to-color baby animals — elephants, giraffes, lion cubs, zebras, hippos, and more, each smiling and ready for crayons. Thick outlines and simple shapes made for little hands, one design per page, single-sided.
Buy on AmazonFlash Cards
Full-color cut-out card books for early readers. Cut out, play, learn.
Paperback · Premium color · Ages 2–5
ABC Flash Cards for Toddlers
44 Full-Color Cut-Out Cards — Alphabet, Numbers and Shapes
44 full-color cut-out cards covering the alphabet, numbers, and shapes — made for preschool, pre-K, and kindergarten. Cut out & learn!
Available on Amazon soon
Paperback · Premium color · Ages 4–6
Sight Words Flash Cards for Early Readers
44 Full-Color Cut-Out Cards — Dolch Pre-Primer Words
44 full-color cut-out cards covering Dolch pre-primer sight words for pre-K, kindergarten, and 1st grade. Read it, trace it, know it!
Available on Amazon soon
Paperback · Premium color
Sight Words Flash Cards: Deluxe Expanded Edition
133 Color-and-Cut Cards — The Complete Dolch List
The complete Dolch set — 133 color-and-cut cards across pre-primer, primer, and first grade, organized in three levels. The full early-reading journey in one volume.
Available on Amazon soonLearning — Kindle Editions
Early-learning workbooks for the Kindle — math facts, first words, and handwriting practice.
Kindle ebook · Ages 4–8
Math Flash Cards: Addition & Subtraction for Kids
44 Cards — Add & Subtract with Confidence
44 math flash cards that make addition and subtraction stick — quick daily practice for early learners, at home or in the classroom.
Buy on Amazon
Kindle ebook · Ages 7–10
Math Flash Cards: Multiplication & Division for Kids
44 Cards — Master Times Tables
44 math flash cards for multiplication and division — the next step after addition and subtraction, built for repetition that works.
Buy on Amazon
Kindle ebook · Ages 3–6
My First Words Tracing Book
Trace, Write & Learn First Words
Little hands learn big words — guided tracing lines help preschoolers and kindergartners write their very first words with confidence.
Buy on Amazon
Kindle ebook · Ages 3–6
Handwriting Practice: Letters Tracing Book
Trace Every Letter, Upper & Lowercase
Step-by-step letter tracing from A to Z — uppercase and lowercase — with plenty of practice space for young writers.
Buy on Amazon
Kindle ebook · Ages 3–6
Handwriting Practice: Numbers Tracing Book
Trace & Write Numbers 0–9
Number tracing made fun — guided strokes and practice space help little learners write their numbers clearly and confidently.
Buy on AmazonDeluxe Editions
The biggest, most luxurious volumes in the line.
Paperback · Deluxe
The Big Book of Puzzles: Deluxe Edition
126 Brain-Teasing Puzzles, Premium Collection
The biggest, most luxurious puzzle book in the line — 126 all-new puzzles across nine classic types, 14 of each, in a gold-on-dark deluxe treatment. Zero repeats.
Available on Amazon soon
Paperback · Deluxe · Adults
Botanical Mandalas: Deluxe Edition
An Adult Coloring Garden — 80 Intricate Flower & Leaf Mandalas to Color
All 50 original flower-and-leaf mandalas plus 30 brand-new designs exclusive to this volume — 80 intricate mandalas, each printed single-sided in the 8.5" × 8.5" square format.
Available on Amazon soon