SCHLESINGER, Emily . Tiny Life . ISBN 9781680210774 . ea vol: 60p. (Red Rhino Nonfiction). Saddleback . Jul. 2020. pap. $10.95. Gr 4-7 This series continues to provide engaging, high-interest titles for striving readers at a first-grade reading level. The latest additions explore microorganisms and mysterious natural phenomena. Using short sentences and a controlled vocabulary, the text features several brief paragraphs per page. Information is organized into short, logical chapters. For example, each chapter in Mysterious Objects examines a different natural feature and how related theories have been debunked over time. There is a significant amount of content in the slim 60 pages per book. Appealing page layouts showcase full-page photographs and eye-catching graphics. "Case Files" boxes highlight vocabulary words and fun facts. VERDICT These entertaining volumes are filled with information. A recommended purchase for middle school collections serving hi-lo readers.