Hairs vs. Squares is an ode to an unforgettable season that began with the first major players’ strike in the history of North American sports and ended with a record-setting World Series played by two of the game’s greatest and most colorful dynasties. In a sign of the times it was Hippies vs. Hardhats, a clash of cultures with the hirsute, mod Mustache Gang colliding with the clean-cut, conservative Big Red Machine on the game’s grandest stage. When the Oakland A’s met the Cincinnati Reds in the 1972 Fall Classic, more than a championship was at stake. The more than two dozen interviews bring to life a time when controversy was commonplace, both inside and outside the national pastime. In baseball, Willie Mays was traded, Hank Aaron was chasing down Babe Ruth’s home run record, and Dick Allen was helping to save the Chicago White Sox franchise while winning the American League’s Most Valuable Player award. Outside the American pastime the war in Vietnam was raging, campus protests spread throughout the country, and Watergate and the Munich Olympics headlined the tumultuous year. The 1972 Major League Baseball season was marked by the rapid rise of rookies and young stars, the fall of established teams and veterans, courageous comebacks, and personal redemptions. Along with the many unforgettable and outrageous characters inside baseball, Hairs vs. Squares emphasizes the dramatic changes that took place on and off the field in the 1970s. Owners’ lockouts, on-field fights, maverick managers, controversial trades, artificial fields, the first full five-game League Championship Series, and the closest, most competitive World Series ever, combined to make the 1972 season as complex as the social and political unrest that marked the era.

The Book of Squares by Fibonacci is a gem in the mathematical literature and one of the most important mathematical treatises written in the Middle Ages. It is a collection of theorems on indeterminate analysis and equations of second degree which yield, among other results, a solution to a problem proposed by Master John of Palermo to Leonardo at the Court of Frederick II. The book was dedicated and presented to the Emperor at Pisa in 1225. Dating back to the 13th century the book exhibits the early and continued fascination of men with our number system and the relationship among numbers with special properties such as prime numbers, squares, and odd numbers. The faithful translation into modern English and the commentary by the translator make this book accessible to professional mathematicians and amateurs who have always been intrigued by the lure of our number system.

Partial least squares structural equation modeling (PLS-SEM) has become a standard approach for analyzing complex inter-relationships between observed and latent variables. Researchers appreciate the many advantages of PLS-SEM such as the possibility to estimate very complex models and the method’s flexibility in terms of data requirements and measurement specification. This practical open access guide provides a step-by-step treatment of the major choices in analyzing PLS path models using R, a free software environment for statistical computing, which runs on Windows, macOS, and UNIX computer platforms. Adopting the R software’s SEMinR package, which brings a friendly syntax to creating and estimating structural equation models, each chapter offers a concise overview of relevant topics and metrics, followed by an in-depth description of a case study. Simple instructions give readers the “how-tos” of using SEMinR to obtain solutions and document their results. Rules of thumb in every chapter provide guidance on best practices in the application and interpretation of PLS-SEM.

A Primer on Partial Least Squares Structural Equation Modeling (PLS-SEM) by Joseph F. Hair, Jr., G. Tomas M. Hult, Christian Ringle, and Marko Sarstedt is a practical guide that provides concise instructions on how to use partial least squares structural equation modeling (PLS-SEM), an evolving statistical technique, to conduct research and obtain solutions. Featuring the latest research, new examples using the SmartPLS software, and expanded discussions throughout, the Second Edition is designed to be easily understood by those with limited statistical and mathematical training who want to pursue research opportunities in new ways.

Fall is here, with all its wonderful visual delights—not just colors, but shapes! This clever concept book follows a family on a trip to a pumpkin patch and invites children to pick out shapes from the seasonal scenery—apple bushel circles, square hay bales, diamond kites in the autumn sky! Felicia Sanzari Chernesky’s sweet verses are perfectly complemented by Susan Swan’s gorgeous collage-inspired art.