Can store text in 720 pages, up to 16mb a page in RichText format with a fast search feature and spell check. Good place to store all your notes. CheckSpell is an extra software included with MyBook, it is different from the spell check that is built in MyBook. Option to change 720 button names, Spell check, Print Setup, Word like tool bar, Quick search, RTFs Backup and many more options. MyBook adjusts size to video resolution. 40 runs evaluation on MyBook and 60 on CheckSpell.