There are many other good books on differential equations. For example, the books by Marcel B. Finan Introductory Notes in Ordinary Differential Equations for Physical Sciences and Engineering and A Second Course in Elementary Differential Equations are freely available online (click on the names to download).
You should also check out Khan Academy.
Additional information about the course, including my policy on homework, exams, and grading, is provided in the Syllabus. The dates of all the exams, and a rough schedule indicating which lecture will be given on each class day can be found on the Course Work page. Students are urged to read the appropriate sections of the book before the lecture, so that they will have a general idea of what problems will be addressed and what approaches will be taken so that they can make better use of class time. Note that very often, there will be material in the book that we will not have time to present in class, so it is also important to read the appropriate section of the book after the lecture as well. Note, the schedule of lectures is just an approximation; we may find ourselves ahead of or behind schedule, depending on some unknowns. Your regular attendance in class will ensure that you will be aware of such changes.