
Puzzles and brain training in large print – for everyone from rotary phones, tape recorders and black-and-white TV all the way to today’s smartphones. Keep your mind fresh, sharp and busy: print a page, grab a pen, take your time.
Would you like to try?
Six skills, one brain

Therapists & caregivers
Ready-to-print pages for your clients – at their homes or in your practice.
More information →Senior communities
Ready-to-print activities for senior living, senior centers, day programs, libraries and faith groups.
More information →Tell us your name and email and we will send you a new puzzle to print every now and then – word searches, brain teasers, surprising facts. Free, and you can leave any time.

Based on scientific research, for everyone born 1945–1960 who grew up in the ’60s and ’70s. Twelve weeks of memory, logic, speed, detail and multitasking exercises, in large print.
Comes with free Booster Sessions
Theo Thinker began at a family get-together, talking about how to keep our parents fresh, active and curious. So we made them homemade puzzles, brain teasers and crosswords. They loved them, and soon they were asking regularly: “What has Theo Thinker prepared for us today?” Before long, friends wanted copies for their parents too – and the idea of books and a club for anyone who wants to keep the mind fresh, sharp and busy took shape.