The TI-89 Tips eBook is a downloadable PDF with a collection of basic and advanced examples on how to use the TI-89.

A major difference between the eBook and the original manual, carrying 557 pages in 1998 and 332 pages today, is that the eBook's 60 pages focus on the core elements of the calculators' many functionalities that engineering and business students should be aware of from early stages when studying (e.g. statistics, graphing, laplace, solving equations and matrices).

The author shows through series of screen pictures how to enter various commands in different situations to get the right numbers the easy way.

Some examples of what is inside the eBook can be viewed below and on the content page.