Best Slang & Idiom Reference Books of 2025

Why Do We Say That? 101 Idioms, Phrases, Sayings & Facts! A Brief History On Where They Come From! is a fascinating book that explains the origins of some of the most commonly used idioms, proverbs, and colloquial terms. The book reveals the mesmerizing and sometimes outright bizarre backstories behind these fun sayings. It explains how each phrase was coined, how its use evolved through the ages, and how it gained its contemporary use. The book is well-written and concise, making it an enjoyable read for both adults and children. Overall, it's a great addition to anyone's bookshelf who has an interest in the English language and its history.

The Great Book of American Idioms is a comprehensive dictionary that covers over 1300 idioms and expressions, providing learners with a valuable resource to improve their English. The book offers correct definitions and usage of each expression, along with visual examples in common conversations to help readers understand their context. The introduction and conclusion of the book also provide essential tips to boost learning and improve the understanding of the English language. Overall, this independently published book is an excellent addition to any English-learning resources and a must-have for learners who want to communicate like a native.

The "Let's Speak Korean" book is a great resource for anyone who wants to learn the language quickly and easily. With over 1,400 daily expressions from 21 topics, this book is designed for beginners with no knowledge of Korean. The audio tracks available on the dedicated web page allow you to listen and repeat each expression, eliminating any guesswork. The romanized version of each expression and unique grammar guide marks make it easy to understand the structure of Korean sentences. The book also includes a dedicated section covering how to read and pronounce Korean alphabet, Hangeul. Overall, this book is a great tool for those interested in learning Korean.

The book titled "5000 palabras más usadas en Inglés: Aprende a escribir y Pronunciar las palabras en ingles correctamente" is a helpful guide for beginners who struggle with English grammar and pronunciation. The book provides the meaning and pronunciation of common English words, along with example sentences. It's a great resource for those who are too shy to speak English or feel nervous while communicating. The book is an excellent tool for learning English and improving fluency.

The Little Book of Irishisms is a fun and informative guide for anyone interested in understanding the Irish language and culture. Written by Denise Deegan under the pen name Aimee Alexander, the book offers a glimpse into the unique words and expressions used in Ireland, as well as tips for pronouncing Irish names. Whether you're planning a trip to Ireland or simply want to sound more like a local, this book is a must-read. Overall, The Little Book of Irishisms is a charming and witty guide that captures the essence of Irish humor and language.

O is for Old School is a playful and inter-generational A-Z book that takes parents and their kids on a hip-hop journey through iconic words and phrases. The book features stunning illustrations and a hip-hop glossary at the back. James Tyler's witty writing and Ella Cohen's warm illustrations make this book a perfect read-aloud for parents who want to introduce their little ones to the world of hip-hop. Overall, O is for Old School is a unique and fun way to teach kids their ABCs while sharing a bit of nostalgia with parents.

The "Scotland Slang Phrase Book" is a handy A-Z guide to understanding the unique vocabulary and dialect of Scots. It features a collection of common words and phrases, with simple definitions and humorous illustrations to make learning enjoyable. The book is small enough to carry in a pocket or handbag, making it a perfect companion for anyone moving to or visiting Scotland. This book can also be a fun gift idea for anyone who loves Scottish culture. Overall, this book is an entertaining and educational resource for anyone looking to decode the Scottish accent and language.

This workbook is the perfect tool for beginners who want to learn Hiragana and Katakana, the two basic alphabets of the Japanese language. Packed with practical information, it includes stroke order diagrams, writing instructions, and flashcards to cut out and keep. With over 120 pages of calligraphy practice exercises, it is suitable for both adults and children. The author, George Tanaka, provides just enough detail to get readers started quickly. Whether for self-study or as a gift for a friend, this workbook is the best way to begin learning Japanese.

The "Learn Mexican Spanish for Adult Beginners Workbook" is an excellent guide for anyone who wants to learn Mexican Spanish in 30 days. This book covers everything from basic conversation, grammar, and slang to cultural facts and useful phrases for traveling. The author also includes information about Mexican cuisine, music, and festivities. This book is perfect for beginners who want to learn the language spoken in Mexico and immerse themselves in Mexican culture. Overall, this book is a great resource for anyone looking to learn Mexican Spanish and gain a deeper understanding of Mexican culture.

The Diccionario Larousse del Español Moderno (Spanish Edition) is a comprehensive dictionary that contains over 50,000 entries and 100,000 definitions. It includes succinct yet complete definitions written in contemporary language, clear examples of the relationship between different parts of speech, and words in general usage as well as scientific and other specialized terminology. Additionally, it focuses on expressions characteristic of the peoples of Latin America, making it a valuable resource for those interested in the region's culture and language. Overall, this book is a must-have for anyone looking for a reliable and up-to-date Spanish dictionary.