4 ms·
All of my books are in pdf and receive zero maintenance - many of them are still incredibly useful.
by altairiumblue 8y ago
All of my books are in pdf and receive zero maintenance - many of them are still incredibly useful.
- pooya13 8y agoI did not make a blank statement about the usefulness of outdated books. But certain topics do get out of date pretty quickly and would be less valuable to a maintained book.