Personality tests are relatively quick and easy to read, and are thus great for improving your English vocabulary and knowledge of idiomatic expressions.
These quizzes were designed primarily to enable you to:
learn some useful English vocabulary (of the type that is often not taught in a language course)

have fun doing something in English that you might equally well have done in your own language

This book is NOT intended to be an amateur psychology book or self-help book. Neither the quizzes nor the explanations should be taken any more seriously than you would take a horoscope in a newspaper or magazine.
In addition to the personality tests there are:
glossaries of key words

scores and interpretations

vocabulary exercises

Easy English! is a series of books to help you learn and revise your English with minimal effort. Youcan improve your English by
reading texts in English that you might well normally read in your own language e.g. jokes, personality tests, lateral thinking games, wordsearches.

doing short exercises to improve specific areas grammar and vocabulary, i.e. the areas that tend to lead to the most mistakes - the aim is just to focus on what you really need rather than overwhelming yourself with a mass of rules, many of which may have no practical daily value

Other books in the Easy English!series include:

Wordsearches: Widen Your Vocabulary in English
Test Your Personality: Have Fun and Learn Useful Phrases
Word games, Riddles and Logic Tests: Tax Your Brain and Boost Your English
Top 50 Grammar Mistakes: How to Avoid Them
Top 50 Vocabulary Mistakes: How to Avoid Them