Death Before Wicket by Kerry Greenwood

Phryne Fisher is on holiday. She means to take the train to Sydney (where the harbour bridge is being built), go to a few cricket matches, dine with the Chancellor of the university and perhaps go to the Arts Ball with that celebrated young modernist, Chas Nutall. She has the costume of a lifetime and she's not afraid to use it. When she arrives there, however, her maid Dot finds that her extremely respectable married sister Joan has vanished, leaving her small children to the neglectful care of a resentful husband.

Thinking Like Einstein

"This book is a fascinating look at the history of the relationship between logical and visual thinking. There are aspects to this history that are both frightening and encouraging, and, with the current pendulum swing back toward visualization as a respectable thinking tool, it provides an important guide to what has been done before and what can be done in the future.