No matter what stage of a relationship you\u2019re in, there\u2019s always room for more self-development. But where to start when every book on Amazon promises to give you all the answers? Do you need a book with the latest research, or is it better to pick up one written by an author we know to be a sex God of their time (we\u2019re looking at you, Henry Miller and Charles Bukowski).\r\n\r\nWhen weeding the phoney from the phenomenal, we like to bring in the experts. Here, a sex educator tells us which relationship and sex books are best. Whether you want a deeper connection or a deeper orgasm, she promises you\u2019ll find the answer within the pages of these cult classic books on relationships.\u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\r\n\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\r\nThe Enlightened Sex Manual: Sexual Skills For The Superior Lover by David Deida\u00a0\r\nBest book for: Upping your sex game\r\n\r\nDavid Deida is one of the most fascinating sex and relationship practitioners around and I would consider The Enlightened Sex Manual one of the best books on sex and a must-read for all men. Within, Deida talks about how true enlightenment comes from great sex, and vice versa. If you like what you\u2019ve read about Tantra, then you\u2019ll love this book. It teaches you how to generate a deeper connection with your lover and transform that simple \u201cskin friction\u201d sex (which can be fun in a quickie!) into true, all-encompassing sexual ecstasy \u2013 meaning harder, more meaningful orgasms for you and them. Great for single, dating and committed men of any sexual orientation, The Enlightened Sex Manual will make you the ultimate whole-body lover.\r\nBuy it here\r\n\r\nThe 5 Love Languages: The Secret To Love That Lasts by Gary Chapman \r\nBest book for:\u00a0Better understanding your partner\r\n\r\nThis New York Times best-selling novel is decades old, but the five love languages it established are still considered genius. What\u2019s a love language? Simply, it\u2019s the way a person portrays and recognises romantic love. If your girl loves being surprised with jewellery and you\u2019re always spoiling her with flowers, then she likely falls into the \u2018Receiving Gifts\u2019 category. If she\u2019s always nudging into you on the couch and resting her hand on your thigh on the highway, she\u2019s definitely a \u2018Physical Touch\u2019. The other three love languages are \u2018Quality Time\u2019, \u2018Acts of Service\u2019 and \u2018Words of Affirmation\u2019, and knowing which one your lover falls into \u2013 and having them know yours \u2013 will make your relationship so much easier. The moment you realise, \u2018Hey, they do love me, they just show it in a different way\u2019 is the moment you\u2019ll feel completely and wholly content in your relationship. It\u2019s a short book to better your relationship, and well worth reading. Pick it up, and pass it on.\r\nBuy it here\r\n\r\nDelta of Venus by Ana\u00efs Nin \r\nBest book for: Discovering your deepest desires\u2026 and your lover\u2019s, too\r\n\r\nThe perfect book to read with your lover if you\u2019re hoping to delve into one another\u2019s deepest desires, this 1930s literature explores erotica from the female perspective while including a little Sherlock Holmes-esque mystery. A collection of short stories, Delta of Venus explores the French author\u2019s exotic encounters in quick, devourable tales that would be best rationed night after night. From the hat maker who leaves her husband for an opium den in Peru, through to the veiled woman who selects diners at a local restaurant for private trysts, each story has an element of old-world with 21st Century applications. When the writer was the lover of one of the most prolific sexual writers of his time, you know she\u2019d have some good stories to tell. Read this book to your partner before bed and challenge yourself to keep your hands off one another until the end of each chapter\u2026\r\nBuy it here\r\n\r\nEssays In Love by Alain De Botton\r\nBest book for:\u00a0Reading and re-reading as your relationship\/s evolve\r\n\r\nDisclaimer: This is my all-time favourite book on relationships. I first read Essays In Love when I was 21 years old, the same age De Botton was when he penned the short novel. Following the beginnings of a romance between two strangers after they meet on a flight from Paris to London, De Botton\u2019s first novel explores classic relationship dynamics such as the first fight, your first \u2018I love you\u2019 and the last goodbye. Simply written and yet brilliantly layered to explore the micro-moments through a philosophical lens, you\u2019ll speed through this book in a day, and yet the learnings peppered throughout will stay with you forever. Take this quote, which didn\u2019t resonate for me until I found my \u2018Chloe\u2019: \u201cPerhaps it is true that we do not really exist until there is someone there to see us existing, we cannot properly speak until there is someone who can understand what we are saying in essence, we are not wholly alive until we are loved.\u201d\r\nBuy it here\r\n\r\nMating In Captivity by Esther Perel\r\nBest book for: Reigniting the spark in your 5+ year relationship\r\n\r\nFeeling the romance dissipate from your relationship now you\u2019ve moved in together \/ been together for five years \/ had a baby \/ [insert milestone here]? Mating In Captivity is here to tell you that it\u2019s completely normal and able to be fixed. The world\u2019s best voice on erotic intelligence (no competition), Perel invites you to question your relationship, your home life, and whether you\u2019re really doing all you can to nurture sexual desire under the roof of your home. A practicing couples therapist, Perel peppers this book on long-term relationships with confronting case studies and witty commentary that will assure you you\u2019re not alone, and that all ladder up to the old saying, \u201cthe grass is greener where you water it\u201d.\r\nBuy it here\r\nAbout the Author:\u00a0Tammi Ireland is a sex educator. Follow her at @BAREsexology.