The size and availability of network information has exploded over the last decade. Social scientists now share the stage of network analysis with computer scientists, physicists, and statisticians. While a number of introductions to network analysis are now available, most focus on theory, methods, or application alone. This book integrates all three. Network Analysis is an introduction to both the why and how of Social Network Analysis (SNA). It presents a broad theoretical overview rooted in social scientific approaches and guides users in how network analysis can answer core theoretical questions. It provides a comprehensive overview of descriptive and analytical approaches, including practical tutorials in R with sample data sets. Using an integrated approach, this book aims to quickly bring novice network researchers up to speed while avoiding common programming and analysis mistakes so that they might gain insight into the fundamental theories, key concepts, and methodological application of SNA.

This is a guide to all British birds whose sounds are likely to be encountered by the average birdwatcher. A total of 175 species are heard ranging from the familiar tawny owl to the very rare call of the bittern. This is an authorititive guide and an ideal gift for anyone wishing to learn the sounds of the great variety of birds that can be seen and heard throughout the season. A perennial bestseller. Includes an introductory booklet.

2007 four CD set, part of the excellent Simply series, that fondly reminisces with stars of Rock 'N' Roll like Little Richard, Jerry Lee Lewis and Buddy Holly, Includes hits from some of the '50s giants of Rockabilly, Doo-Wop and Country; girl groups, Pop and Blues from the '60s and a rich vein of nostalgic love songs. Lose yourself in the magic of the good old days! 60 tracks including cuts from The Dixie Cups, Roy Orbison, Johnny Cash, Huey Piano Smith, The Champs, Patsy Cline, Gene Chandler and many others. Simply.