Pick your door
Four ways into math worth enjoying.
The Math Detective Agency
Story-driven secret missions — codes, patterns and hidden math.
Enter the Agency →Kids' Workbooks
Teach the idea first, then practice it — confidence over page-filling.
Browse kids' books →Color by Math
Solve, color, reveal the picture — math practice that feels like play.
See the books →Adult Workbooks
Brain training with real satisfaction — daily warm-ups to hard puzzles.
Browse adult books →TOP SECRET
FIELD TRAINING
The next Math Detective Agency book sends agents outdoors — 25 field operations across terrain codes, nature patterns and one final archive hiding a symbol no one expected.
DECLASSIFIED: JULY 20, 2026
The Agency goes outdoors
Book 2 of The Math Detective Agency launches July 20. Grab the free mission pack from Book 1 and you'll be first to know when it's live.
What readers say
"This was a fantastic work book that my math loving boy (9) worked through over the course of several days. He loved it so much because of the way the book is laid out and the mysteries were engaging and fun. It's packed with information that would be interesting to math lovers and non-math lovers alike. He absolutely loved this. I highly recommend it and hope that they make more."K Hammill Verified Amazon review
"Loved this book, finished the whole thing and would work on it in the morning at my desk at work. Just feels good to keep the mind moving. The math is very basic but more than I ever do normally! Going to buy the next book up from this just to keep it going."Karen Tuczynski Verified Amazon review
"Perfect workbook to review basic arithmetic from addition to division. Lots and lots of practice problems. One small thing that is important is that the problems are nicely spaced so there's plenty of room to work out your answers."s. Raynard Verified Amazon review
Start with 3 free missions
See how Math I Like It books work before you buy. Three complete missions from The Math Detective Agency, printable in minutes.
Send me the missions