Blanche C. Weill. Blanche C. Weill was a collaborator of Lydia Sicher in the Los Angeles area. She wrote from an Adlerian perspective about family matters. In this book she helps parents and professionals understand the uniqueness of children within the same family. In a number of detailed case studies she helps the reader understand the child’s inner workings (prototype and lifestyle) as they develop their limited understanding of their world and how they fit into it.