Lonely planet Sweden is not a bad introduction to Sweden, but it is not as reader friendly as it could have been, and it is a little short on content. However, I cannot recommend "The Rough Guide to Sweden" in its place, due to some grave omissions and incorrect and highly subjective information in this book.
There are some minor errors in Lonely Planet Sweden that irritated me. For example, the word "älg" is translated as "Elk" through out the book (dozens of places). This is wrong, "älg" is "Moose" not "Elk". Sweden has moose but no elk (Kanada hjort). Another example is that the river "boat race" in Uppsala on the Walpurgis festival is actually a "float race", real boats are not used. Instead anything home made that floats, including Styrofoam skis, large airbags, and decorated floats are used. It is more of a comic arts and craft event rather than a "boat race".
However, what annoyed me the most was that out of the books 313 pages only 36 pages were devoted to the Northern part of Sweden called "Norrland". This part is 2/3 of Sweden and has probably the most interesting attractions in all of Sweden. That includes wild life (thousands of Brown Bear, 300,000 Moose, reindeer, wolf packs, Lynx, etc.), the famous Ice Hotel (hotel made entirely of Ice), nature, mountains, moose hunting trips, fishing, ski slopes, national parks, Sámi culture, and much more. Central Europeans flock to Norrland to see these things that does not exist in other parts of Europe. This is described very briefly, if at all, in this book. However, the Ice Hotel lobby is depicted on the front cover, which is a consolation.
I am from Norrland, so I may be biased too, but I still think that mentioning nothing about many of the popular tourist attractions in Norrland, while mentioning almost every Pizza joint in the country is imbalanced.