Betsy Hearne is my Yoda of children's literature. While the bibliographies in this book are now dated (dated, but still highly useable), the principles and suggestions for choosing books are excellent and extremely helpful. Hearne's writing is engaging, encouraging, and highly readable. If you don't have much experience reading or selecting children's books, this is an excellent starting place. And if you do have experience, this is still an excellent reference to keep around.