I still favour a paper rule book , but I might consider diving into the digital word a bit more with Calibre . It helps you manage your e - book appeal and convert them to popular mobile formats .
Calibre is loose and available for Windows , Mac OS X , and Linux systems . [ CalibreviagHacksviaLifehacker ]
https://lifehacker.com/calibre-manages-your-e-book-collection-5169425
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