I keep all of my ebooks in my ipad and have library, active, and completed sections. I have four books in my active section that I read through as time goes on

I keep all of my ebooks in my ipad and have library, active, and completed sections. I have four books in my active section that I read through as time goes on and every time I complete a topic I pop a book from active onto completed and push another into my active section. I found I was shifting too quickly between books whenever I got disinterested or the material got tough and I would never pick them up again until weeks later which gave me very little context for what I was learning. Finishing books and being able to review them gives you much more closure on topics and makes you retain the material better. By having four I still allow myself to shuffle a bit but it reminds me to force my way though the hard parts when a book's been sitting there too long. Maybe once a month I'll map out my interests and try and find books pertaining to them and add them to my collection. Most of the major publishers have good daily deals on ebooks, and my library has a really good collection of hard copy books when I'm strapped for cash.