This book grew out of two similar ones, on the physical and mental care of childhood respectively, which the authors had written for the same series. It was a happy idea to unite them in one volume and to expand them to more than double the original size. The first half, the part on physical upbringing by Miss Bennett, is throughout trustworthy, but its details do not concern us here. The second part shews the care, knowledge, and comprehensiveness which we should expect from Mrs. Isaacs. It is an excellently written account of early childhood from a modern point of view, and the psycho-analytical considerations are introduced with great skill and a sense of feeling for the reader's capacity to understand. We have so many times been asked, by patients and others, for a book dealing adequately with the care and understanding of young children that it is a pleasure at last to have in one's hand just the book needed for this purpose.