My favorite books are the "Spectrum" series at any book store.
Glad you popped in.
What reading level is she reading currently? My daughter has comprehension difficulties and I can try and suggest a few things that have been working. Working together with non-fiction books work best. Have her read them one page at a time and then talk about page and take an educated guess about the next page. Make sure she understands all the vocabulary and can pick out what words she doesn't understand. There are tons of these books available I would suggest a trip to the public library.
For chapter books I would try and find out her reading level. Many books now list their level on the back and you will find something that says 2.4 or 4.5. I find if my daughter isn't getting interested in a book then it's likely it's too difficult for her. We are currently working on enjoyment and comprehension and therefore aren't pushing the level of the book. My daughter is still most comfortable with 3rd to early 4th grade books. My daughter has currently been enjoying what we call the "Cheese" book... they are by a fictional mouse named "Jerimia Stilton". She also enjoys Judy Blume, Beverly Cleary books and the Judy Moody series.
There are lots of math homework websites out there. But honestly I suggest a workbook for either 4th graders or one geared for summer help. For tutoring my daughter one on one time with a pencil and paper works best.