hi turtle, welcome to the forum.
the eb1150 is a great reading device despite its quirks. books must be converted to the imp format but this is very simple ; i recommend buying lit format books, which can be converted using the
lit2sb tool. if they are drm (secure) files, you will need the Convert Lit program (search on google). there is also
mobi2imp for mobipocket books, and eBook Publisher for creating your own imp books. i do NOT recommend using the BookDesigner program to create imps ; it does a very poor job and is unnecessarily complicated.
a card reader can be used to transfer files to the eb1150 but you don't need it ; you can connect the eb1150 to your computer directly and use
impserve or the
REB Librarian.
all of the software i have mentioned in this post is free. you can get a lot of information about helpful software in this wiki page :
https://wiki.mobileread.com/wiki/IMP_software
also, there are a lot of very helpful people around here including some real eb1150 experts, so please don't hesitate to take a look around the
ebookwise forum and feel free to ask any questions you may have.
enjoy your eb1150 ! i promise, you will figure out how to use it.