[Warning: Do not buy an old edition of Timothy Crack's books by mistake. Click on the Amazon auth...

THIS IS A MUST READ! This pocket edition contains a careful selection of 20 brain teasers, 30 thi...

[Note: eBook version of latest edition now available; see Amazon author page for details.] The au...

[Note: eBook version of latest edition now available; see Amazon author page for details.] This p...

Green Dog has lost his bone. Where can it be? Help Green Dog search for his bone in his favourite...

[Note: eBook version of latest edition now available; see Amazon author page for details.] This r...

THIS IS A MUST READ! This pocket edition contains a careful selection of 75 of the best quantitat...

This is a book of silly ghosts suitable for children aged 3 to 8. The book uses hand-drawn illust...

Interviews with Top University Teachers: How to Build Quality Teaching, Inspire Your Students, an...

Dr. Crack studied PhD-level option pricing at MIT and Harvard Business School, taught undergrad-,...

Every investor needs capital markets intuition and critical thinking skills to conduct confident,...

What is it like to own your first dog? We list the many surprises that we faced with our first do...

[Warning: Do not buy an old edition of Timothy Crack's books by mistake. Click on the Amazon auth...

[Note: eBook now available; see Amazon author page for details.] Dr. Crack studied PhD-level opti...

[Warning: Do not buy an old edition of Timothy Crack's books by mistake. Click on the Amazon auth...

[Note: eBook version of latest edition now available; see Amazon author page for details.] Every ...